Climate-Change
Summary and Update
Guy
McPherson
8
June, 2015
Updated
frequently, and most recently 8 June 2015.
**
Latest additions are flagged with two asterisks on each side. ** To
access only the latest information (on most browsers), use CTRL-F,
type two asterisks into the “find” box, and hit “Return” or
“Enter.” Note that this essay has grown from a few thousand words
in January 2013 to the current massive missive. Happy reading.
*****
I’m
often accused of cherry picking the information in this ever-growing
essay. I plead guilty, and explain myself in this
essay posted 30 January 2014. My critics tend to focus on me and
my lack of standing in the scientific community, to which I respond
with the words
of John W. Farley: “The scientific case is not dependent on
citation of authority, no matter how distinguished the authority may
be. The case is dependent upon experimental evidence, logic, and
reason.” In other words, stop targeting the messenger.
A
German-language version of this essay, updated 26 June 2014, is
available in pdf form here.
A Russian version focused on self-reinforcing feedback loops,
courtesy of Robin Westenra and colleagues, is here.
A Polish version, updated often, is available here.
American actress Lily Tomlin is credited with the expression, “No matter how cynical you become, it’s never enough to keep up.” With respect to climate science, my own efforts to stay abreast are blown away every week by new data, models, and assessments. It seems no matter how dire the situation becomes, it only gets worse when I check the latest reports.
The
response of politicians, heads of non-governmental organizations, and
corporate leaders remains the same, even though they surely know
everything in this essay. They’re mired in the dank Swamp of
Nothingness. Margaret
Beckett, former U.K. foreign secretary said in September 2008 on BBC
America television, with respect to climate change: “Will it
harm our children? Will it harm our grandchildren? Actually, it’s a
problem for us today.” As Halldor Thorgeirsson, a senior director
with the United Nations Framework Convention on Climate Change, said
on 17 September 2013: “We are failing as an international
community. We are not on track.” These are the people who know
about, and presumably could do something about, our ongoing race to
disaster (if only to sound the alarm). Tomlin’s line is never more
germane than when thinking about their pursuit of a buck at the
expense of life on Earth.
Worse
than the aforementioned trolls are the media. Fully captured by
corporations and the corporate states, the media continue to dance
around the issue of climate change. Occasionally a forthright piece
is published, but it generally points in the wrong direction, such as
suggesting climate scientists and activists be killed (e.g., James
Delingpole’s 7 April 2013 hate-filled article in the Telegraph).
Leading mainstream outlets routinely mislead the public.
Mainstream
scientists minimize the message at every turn, with expected results.
As we’ve known for years, scientists
almost invariably underplay climate impacts (James Hansen
referred to the phenomenon at “scientific reticence” in his 24
May 2007 paper about sea-level rise in Environmental Research
Letters.
And in some cases, scientists
are aggressively muzzled by their governments. Canada
no longer allows some climate-change information into the public
realm. Even museums are not safe from misinformation about
climate science to appease fossil-fuel philanthropists, as
reported in the 17 June 2014 issue of AlterNet. I’m not
implying conspiracy among scientists. Science selects for
conservatism. Academia selects for extreme conservatism. These folks
are loathe to risk drawing undue attention to themselves by pointing
out there might be a threat to civilization. Never mind the near-term
threat to our entire species (most couldn’t care less about other
species). If the truth is dire, they can find another, not-so-dire
version. The concept is supported by an article
in the February 2013 issue of Global Environmental Change
pointing out that climate-change scientists routinely underestimate
impacts “by erring on the side of least drama” (also see
overviews of this phenomenon from
21 May 2014 and from
15 July 2014, the latter from the U.S. National Research Council
as reported by Truth-out). Even the often-conservative Robert
Scribbler points
out in his 18 July 2014 essay: “NASA’s CARVE study has been
silent for a year, the University of Maryland has stopped putting out
publicly available AIRS methane data measures, the NOAA ESRL methane
flask measures, possibly due to lack of funding, haven’t updated
since mid-May, and even Gavin Schmidt over at NASA GISS appears to
have become somewhat mum on a subject that, of late, has generated so
much uncomfortable controversy.” (Apocalypse 4 Real blog responded
to Scribbler on 24 July 2014, and the response is linked here.)
Schmidt
increased his efforts to discredit the work of other scientists in
early October 2014 with unfounded, unprofessional behavior.
Almost everybody reading these words has a vested interest in not
wanting to think about climate change, which helps explain why the
climate-change
deniers have won.
It’s
not only the scientists who underestimate the damage. It’s the
science itself, too. Consider, for example, information derived from
satellites which, according
to a March 2015 paper in Journal of Climate,
significantly underestimate temperature of the middle troposphere.
“In
short, the Earth is warming, the warming is amplified in the
troposphere, and those who claim otherwise are unlikely to be
correct.”
Beyond
Linear Change
I’m
often told Earth can’t possibly be responsive enough to climate
change to make any difference to us. But, as the 27 May 2014 headline
at Skeptical Science points out, “Rapid climate changes more
deadly than asteroid impacts in Earth’s past.” That’s correct:
climate change is more deadly than asteroids.
Ever
late to the party, the Intergovernmental Panel on Climate Change
(IPCC) admits global warming is irreversible without geoengineering
in a report
released 27 September 2013. The IPCC is among the most
conservative scientific bodies on the planet, and their reports
are “significantly ‘diluted’ under political pressure.”
On 22 April 2014, Truth-out correctly headlines their
assessment, “Intergovernmental Climate Report Leaves Hopes
Hanging on Fantasy Technology.” Time
follows up two days later with a desperate
headline, “NASA Chief: Humanity’s Future Depends On Mission To
Mars” (first up: greenhouses
on Mars). As pointed
out in the 5 December 2013 issue of Earth
System Dynamics,
known
strategies for geoengineering are unlikely to succeed (“climate
geo-engineering cannot simply be used to undo global
warming“). “Attempts
to reverse the impacts of global warming by injecting reflective
particles into the stratosphere could make matters worse,”
according to research published in the 8 January 2014 issue
of Environmental
Research Letters.
In addition, as described
in the December 2013 issue of Journal of Geophysical Research:
Atmospheres,
geoengineering may succeed in cooling the Earth, it would also
disrupt precipitation patterns around the world. Furthermore, “risk
of abrupt and dangerous warming is inherent to the large-scale
implementation of SRM” (solar radiation management), as pointed
out in the 17 February 2014 issue of Environmental
Research Letters.
About a week later comes this line from research published in
the 25 February 2014 issue of Nature
Communication:
“schemes
to minimize the havoc caused by global warming by purposefully
manipulating Earth’s climate are likely to either be relatively
useless or actually make things worse.” Finally, in a blow
to technocrats published online in the 25
June 2014 issue of Nature Climate Change,
a large and distinguished group of international researchers
concludes geo-engineering will not stop climate change.
The U.S.
National Academy of Sciences piles on with a report issued 10
February 2015, concluding geoengineering is not a viable solution
for the climate predicament. As it turns out, the public isn’t
impressed, either: Research published
in the 12 January 2014 issue of Nature Climate Change “reveals
that the overall public evaluation of climate engineering is
negative.” Despite pervasive
American ignorance about science, the public correctly interprets
geo-engineering in the same light as the scientists, and contrary to
the techno-optimists.
Unimpressed
with evidence and public opinion, some scientists forge on,
illustrating that the progressive perspective often means
progresssing toward the cliff’s edge. As reported
in the 27 November 2014 issue of New Scientist,
initial efforts to cool the planet via geo-engineering have taken
shape and might begin in two years.
The
IPCC operates with a very conservative process and produces very
conservative reports for several reasons, among them the failure to
include relevant self-reinforcing feedback loops (as pointed
out in the 1 April 2015 issue of the Washington Post).
And then governments
of the world meddle with the reports to ensure Pollyanna
outcomes, as reported
by a participant in the process (also see Nafeez
Ahmed’s 14 May 2014 report in the Guardian
and the 3
July 2014 paper in National Geographic).
According to David Wasdell’s May
2014 analysis, which includes a critique of the IPCC’s ongoing
lunacy, “equilibrium temperature increase predicted as a result of
current concentration of atmospheric greenhouse gasses is already
over 5°C.” I see no way for humans to survive such a rise in
global-average temperature.
Gradual
change is not guaranteed, as pointed
out by the U.S. National Academy of Sciences in December 2013:
“The history of climate on the planet — as read in archives such
as tree rings, ocean sediments, and ice cores — is punctuated with
large changes that occurred rapidly, over the course of decades to as
little as a few years.” The December 2013 report echoes
one from Wood Hole Oceanographic Institution more than a decade
earlier. Writing for the 3
September 2012 issue of Global Policy,
Michael Jennings concludes
that “a suite of amplifying feedback mechanisms, such as massive
methane leaks from the sub-sea Arctic Ocean, have engaged and are
probably unstoppable.” During a follow-up
interview with Alex Smith on Radio Ecoshock, Jennings admits that
“Earth’s climate is already beyond the worst scenarios.”
Truth-out piles on
18 March 2014: “‘climate change'” is not the most critical
issue facing society today; abrupt climate change is.” Skeptical
Science finally catches up to reality on 2 April 2014 with an essay
titled, “Alarming new study makes today’s climate change more
comparable to Earth’s worst mass extinction.” The conclusion
from this conservative source: “Until recently the scale of the
Permian Mass Extinction was seen as just too massive, its duration
far too long, and dating too imprecise for a sensible comparison to
be made with today’s climate change. No longer. Piling on in
January 2015, a paper in press in the journal Progress
in Physical Geography
concludes the abstract with this line: “All the evidence indicates
that most long-term climate change occurs in sudden jumps rather than
in incremental changes.”
The Brisbane
Times catches up with abrupt climate change on 18 August 2014:
“Let us be clear: if these methane escapes continue to grow, the
risk is they could drive the planet into accelerated or ‘runaway’
global warming. The last time this happened, 50 million years ago,
global temperatures rose by an estimated 9 or 10 degrees. In the
present context, that would mean the end of the world’s food
supply.” Robert Scribbler finally joins
the uprising on 29 October 2014: “What is clear is that
feedbacks to the human heat forcing are now starting to become
plainly visible. That they are providing evidence of a stronger
release from some sources on a yearly basis.” The
Daily Kos summarizes evidence indicating abrupt climate change on 14
March 2015 with an article headlined, “The Earth is Set for
Rapid Warming.”
As reported by Robert Scribbler on 22 May 2014, “global sea surface temperature anomalies spiked to an amazing +1.25 degrees Celsius above the, already warmer than normal, 1979 to 2000 average. This departure is about 1.7 degrees C above 1880 levels — an extraordinary reading that signals the world may well be entering a rapid warming phase.”
Not
to be outdone, now that abrupt climate change has entered the
scientific lexicon, is dire news published
in the 25 July 2014 issue of Science.
“The
study found that synchronization of the two regional systems began as
climate was gradually warming. After synchronization, the researchers
detected wild variability that amplified the changes and accelerated
into an abrupt warming event of several degrees within a few
decades.” Global-average temperature rising “several degrees
within a few decades” seems problematic to me, and to anybody else
with a biological bent. As
reported eight days later in Nature Climate Change,
rapid
warming of the Atlantic Ocean, likely caused by global warming, has
turbocharged Pacific Equatorial trade winds. Currently the winds are
at a level never before seen on observed records, which extend back
to the 1860s. When this phenomenon ceases, likely rapid changes will
include a sudden acceleration of global average surface temperatures.
Extinction
Overview
If
you’re too busy to read the evidence presented below, here’s the
bottom line: On a planet 4 C hotter than baseline, all we can prepare
for is human extinction (from Oliver
Tickell’s 2008 synthesis in the Guardian).
Tickell is taking a conservative approach, considering humans have
not been present at 3.3 C or more above baseline (i.e., the beginning
of the Industrial Revolution, commonly accepted as 1750). I cannot
imagine a scenario involving a rapid rise in global-average
temperature and also habitat for humans. Neither can Australian
climate scientist Clive Hamilton, based
on his 17 June 2014 response to Andrew Revkin’s fantasy-based
hopium. According to the World
Bank’s 2012 report, “Turn down the heat: why a 4°C warmer
world must be avoided” and an informed
assessment of “BP
Energy Outlook 2030” put together by Barry Saxifrage for the
Vancouver
Observer,
our path leads directly to the 4 C mark. The conservative
International Energy Agency throws in the towel on avoiding 4 C in
this video from
June 2014 (check the 25-minute mark). The 19th Conference of the
Parties of the UN Framework Convention on Climate Change (COP 19),
held in November 2013 in Warsaw, Poland, was warned by professor of
climatology Mark Maslin: “We are already planning for a 4°C world
because that is where we are heading. I do not know of any scientists
who do not believe that.” Among well-regarded
climate scientists who think a 4 C world is unavoidable, based
solely on atmospheric carbon dioxide, is Cambridge University’s
Professor of Ocean Physics and Head of the Polar Ocean Physics
Group in the Department of Applied Mathematics, Dr. Peter
Wadhams (check the 51-second mark in this
8 August 2014 video), who says: “…the carbon dioxide
that we put into the atmosphere, which now exceeded 400 parts per
million, is sufficient, if you don’t add any more, to actually
raise global temperatures in the end by about four degrees.” Adding
to planetary misery is a paper
in the 16 December 2013 issue of the Proceedings of the National
Academy of Sciences concluding that 4 C terminates the ability of
Earth’s vegetation to sequester atmospheric carbon dioxide.
I’m
not sure what it means to plan for 4 C (aka extinction). I’m not
impressed that civilized scientists claim to be planning for it,
either. But I know we’re human animals, and I know animals require
habitat to survive. When there is no ability to grow food or secure
water, humans will exit the planetary stage. And even Wikipedia
accepts the evidence for near-term human extinction, as indicated by
the caption on the figure below.
A
550ppm CO
2
level correlates to +9° C temperature rise, which was previously
enough to trigger self-reinforcing climate change feedback loops
leading to the Permian Extinction Event with 95% planetary die-off.
Even more worrying is that current levels of atmospheric methane
(>1820ppb) indicate near-term human extinction.
According to Colin Goldblatt, author of a paper published online in the 28 July 2013 issue of Nature Geoscience, “The runaway greenhouse may be much easier to initiate than previously thought.” Furthermore, as pointed out in the 1 August 2013 issue of Science, in the near term Earth’s climate will change orders of magnitude faster than at any time during the last 65 million years. Tack on, without the large and growing number of self-reinforcing feedback loops we’ve triggered recently, the 5 C rise in global-average temperature 55 million years ago during a span of 13 years (subsequently questioned in this paper from January 2015), and it looks like trouble ahead for the wise ape. This conclusion ignores the long-lasting, incredibly powerful greenhouse gas discovered 9 December 2013 by University of Toronto researchers: Perfluorotributylamine (PFTBA) is 7,100 times more powerful than carbon dioxide as a greenhouse gas in the atmosphere, and it persists hundreds of years in the atmosphere. It also ignores the irreversible nature of climate change: Earth’s atmosphere will harbor, at minimum, the current warming potential of atmospheric carbon dioxide concentration for at least the next 1,000 years, as indicated in the 28 January 2009 issue of the Proceedings of the National Academy of Sciences.
Finally,
far too late, the New
Yorker
posits a relevant question on 5 November 2013: Is
It Too Late to Prepare for Climate Change? Joining the
too-little, too-late gang, the Geological Society of London points
out on 10 December 2013 that Earth’s climate could be twice as
sensitive to atmospheric carbon as previously believed. New
Scientist
piles on in March 2014, pointing
out that planetary warming is far more sensitive to atmospheric
carbon dioxide concentration than indicated by past reports. As usual
and expected, carbon
dioxide emissions set a record again in 2013, the the 5th-hottest
year on record (since 1850). The top three hottest years (2010, 2005,
and 2007) were influenced by El Niño events, which cause short-term
warming of the Earth’s atmosphere.
Rate
of temperature change today (red) and in the PETM (blue). Temperature
rose steadily in the PETM due to the slow release of greenhouse gas
(around 2 billion tons per year). Today, fossil fuel burning is
leading to 30 billion tons of carbon released into the atmosphere
every year, driving temperature up at an incredible rate. Figure from
http://www.wunderground.com/climate/PETM.asp?MR=1
Is
There a Way Out?
All
of the above information fails to include the excellent work by Tim
Garrett, which points out that only complete
collapse avoids runaway greenhouse. Garrett reached the
conclusion in a paper submitted in 2007 (personal communication) and
published
online by Climatic Change in November 2009 (outcry from civilized
scientists delayed formal publication until February 2011). The paper
remains largely ignored by the scientific community, having been
cited fewer than thirty times since its publication.
Garrett
was preceded by Ted Turner. He pointed
out on the 2 April 2008 edition of the Charlie Rose Show that
continuing to burn fossil fuels “is suicide”
According
to Yvo de Boer, who was executive secretary of the United Nations
Framework Convention on Climate Change in 2009, when attempts to
reach a deal at a summit in Copenhagen crumbled with a rift between
industrialized and developing nations, “the only way that a 2015
agreement can achieve a 2-degree goal is to shut down the whole
global economy.” Politicians finally have caught up with Tim
Garrett’s excellent paper in Climatic
Change.
From
the Associated
Press on 1 December 2014 comes a story headlined, “Climate
funds for coal highlight lack of UN rules.” The article points out
the difficulty associated with using tools from industrial
civilization to address a predicament created by industrial
civilization: “Climate finance is critical to any global climate
deal, and rich countries have pledged billions of dollars toward it
in U.N. climate talks, which resume Monday in Lima, Peru. Yet there
is no watchdog agency that ensures the money is spent in the most
effective way. There’s not even a common definition on what climate
finance is.” The bottom line from this story: About a billion
dollars intended to mitigate climate change has been used to fund
coal-fired power plants, the worst emitter of carbon dioxide on the
planet.
Writing
for the Arctic News Group, John
Davies concludes: “The world is probably at the start of a
runaway Greenhouse Event which will end most human life on Earth
before 2040.” He considers only atmospheric carbon dioxide
concentration, not the many self-reinforcing feedback loops described
below. Writing on 28 November 2013 and tacking on only one feedback
loop — methane release from the Arctic Ocean — Sam
Carana expects global temperature anomalies up to 20 C 2050 (an
anomaly is an aberration, or deviation from long-term average). Small
wonder atmospheric methane can cause such global catastrophe
considering its dramatic rise during the last few years, as
elucidated
by Carana on 5 December 2013 in the figure below.
On
the topic of tipping points, we crossed the Rubicon in 2007 at about
0.76 C warming. At this point, according to David Spratt’s
excellent September
2013 report, “Is Climate Already Dangerous?”, not only had
Arctic sea-ice passed its tipping point, but the Greenland Ice Sheet
was not far behind, as the Arctic moves to sea-ice-free conditions in
summer (the U.S.
Navy predicts an ice-free Arctic by summer 2016, a year later
than earliest date expected by the Environmental Audit Committee of
the United Kingdom Parliament, which points
out that the six lowest September ice extents have occurred in
the last six years, 2006-2012, and now we can add 2013 and 2014 to
the list). Glaciologist Jason Box, an expert on Greenland ice,
agrees. Box was quoted
in a 5 December 2012 article in the Guardian:
“In 2012 Greenland crossed a threshold where for the first time we
saw complete surface melting at the highest elevations in what we
used to call the dry snow zone. … As Greenland crosses the
threshold and starts really melting in the upper elevations it really
won’t recover from that unless the climate cools significantly for
an extended period of time which doesn’t seem very likely.” (In
January 2013, Box
concluded we’ve locked in 69 feet — 21 meters — of
sea-level rise.) Indeed, as stated
that same year in the September issue of Global Policy,
“because of increasing temperatures due to GHG emissions a suite of
amplifying feedback mechanisms, such as massive methane leaks from
the sub-sea Arctic Ocean, have engaged and are probably unstoppable.”
By December
2013, the disappearance of Greenland’s ice had accelerated to five
times the pace of a few years previously, and IPCC was acknowledging
they’d been far too conservative with past estimates. Continued
conservatism is buttressed by research reported
in the 16 March 2014 issue of Nature Climate Change
indicating melting of Greenland ice accounts for about one-sixth of
recent sea-level rise and also by research published
in the 18 May 2014 issue of Nature Geoscience indicating
Greenland’s icy reaches are far more vulnerable to warm ocean
waters from climate change than had been thought. Finally, a research
paper published
in the 13 June 2014 of Geophysical Research Letters points out that
an ice-free Arctic is likely to cause rapid melting of Greenland ice.
Ice
matters. “Small
fluctuations in the sizes of ice sheets during the last ice age were
enough to trigger abrupt climate change,” as reported
in the 13 August 2014 issue of Nature.
As pointed
out in the 25 September 2014 issue of Nature Communications, ice
sheets melt for centuries once they begin the process. Not
surprisingly, subsequent papers published in the 10
October 2014 issue of Environmental Research Letters and also the
14
January 2015 issue of Nature
indicate all previous work on the topic of sea-level rise has been
conservative.
Predicting
Near-Term Human Extinction
If
you think we’ll adapt, think again, even if you’re the Wall
Street Journal
claiming
on 2 September 2014 that it’s too late for mitigation. The rate
of evolution trails the rate of climate change by a factor of 10,000,
according to a paper
in the August 2013 issue of Ecology Letters.
Even
once-rich habitats in Antarctica are becoming biologically
impoverished as icebergs, increasingly breaking free from the
surrounding sea ice, scour the shallow-water rocks and boulders on
which a diversity of creatures cling to life (according to
research published
in the 16 June 2014 issue of Current Biology).
And it’s not as if extinction events haven’t happened on this
planet, as explained in the BBC program, The
Day the Earth Nearly Died.
The
rate of climate change clearly has gone beyond linear, as indicated
by the presence of the myriad self-reinforcing feedback loops
described below, and now threatens our species with extinction in the
near term. As Australian biologist Frank
Fenner said in June 2010: “We’re going to become extinct,”
the eminent scientist says. “Whatever we do now is too late.”
Anthropologist Louise
Leakey ponders our near-term demise in her 5 July 2013 assessment at
Huffington Post
and her father Richard joins the fray in this video
from December 2013 (see particularly 1:02:18 – 1:02:56).
Canadian wildlife biologist Neil Dawe joins the party of near-term
extinction in an interview
29 August 2013 and musician-turned-activist Sir Bob Geldof joins
the club in a Daily
Star article from 6 October 2013. Health
officials add their voices to the discussion about extinction in
late March 2014, although they view 4 C as a problem to be dealt with
later. Writing for Truth-Out,
journalist John Feffer writes
in his 27 April 2014 essay: “The planet and its hardier denizens
may soldier on, but for us it will be game over.” American
linguist and philosopher Noam
Chomsky concludes we’re done in a 15 June 2014 interview with Chris
Hedges at Truthdig, saying climate change “may doom us all, and
not in the distant future.” Larry Schwartz, writing for AlterNet
on 21 July 2014, concludes,
“Many environmentalists think we have already passed the point of
no return.” Johns Hopkins professor and fossil hunter Ken
Rose agrees in an interview published 29 July 2014: “We’re in
the middle of the sixth great extinction on Earth. It probably won’t
take too long for humans to go extinct.” IT Project Manager
Jennifer Hynes concludes near-term human extinction certain at the
1:20:30 mark of this comprehensive
presentation about global methane release. Three weeks later,
Robert
Scribbler concludes in his assessment of global methane release,
“What I’ve just described is the process that most scientists
believe occurred during the worst mass extinction event in the
geological past … what humans are now doing … may well be
shockingly similar.” Motivational speaker, writer, and politician
Marianne Williamson concludes
near-term human extinction in her
early October 2014 interview with Thom Hartmann. Chris Hedges
agrees in an interview
conducted 22 November 2014. Hollywood catches up with reality as
the 23 November 2014 episode of HBO’s
The Newsroom
channels me: Catch a snippet here.
Randy Malamud, Regents’ Professor at Georgia State University,
writes
for the Huffington Post on 8 December 2014: “it’s time to
accept our impending demise.” Seemingly echoing many relatively
wealthy, heterosexual, Caucasian men, writer Robert
J. Burrowes adds his voice on 15 December 2014 in the Lahore Times:
“In essence then, it is fear that drives dysfunctional
environmental behaviours. And, history tells us, fear will prevent us
taking sufficient action in time.” Paul
Ehrlich absurdly hails the glories of civilization but correctly
concludes human extinction in the near term with his 10 January 2015
interview with MSNBC. In the face of near-term human extinction,
most Americans view the threat as distant and irrelevant, as
illustrated by a 22
April 2013 article in the Washington Post
based on poll results that echo the long-held sentiment that elected
officials should be focused on the industrial economy, not far-away
minor nuisances such as climate change.
Supporters
of carbon farming — the nonsensical notion that industrial
civilization can be used to overcome a predicament created by
industrial civilization — claim all we need to do is fill
the desert with nonnative plants to the tune of an area
three-quarters the size of the United States. And, they say,
we’ll be able to lower atmospheric carbon dioxide by a whopping
17.5 ppm in only two decades. Well, how exciting. At that blistering
pace, atmospheric carbon dioxide will be all the way back down to the
reasonably safe level of 280 ppm in only 140 years, more than a
century after humans are likely to become extinct from climate
change. And, based
on research published in the 2 May 2014 issue of Science,
soil carbon storage has been over-estimated and is reduced as
atmospheric carbon dioxide concentration rises.
According
to the plan presented in the 23 August 2013 issue of Scientific
American,
the nonnative plants, irrigated with increasingly rare fresh water
pumped by increasingly rare fossil-fuel energy, will sequester carbon
sufficient to overcome contemporary emissions. Never mind the
emissions resulting from pumping the water, or the desirability of
converting thriving deserts into monocultures, or the notion of
maintaining industrial civilization at the expense of non-civilized
humans and non-human
species. Instead, ponder one simple thought: When the nonnative
plants die, they will emit back into the atmosphere essentially all
the carbon they sequestered. A tiny bit of the carbon will be stored
in the soil. The rest goes into the atmosphere as a result of
decomposition.
This
essay brings attention to recent projections and self-reinforcing
feedback loops (i.e., positive feedbacks). I presented much of this
information at the Bluegrass
Bioneers conference (Alex Smith at Radio Ecoshock evaluates my
presentation here).
More recently, I presented an updated
version in a studio in Bolingbrook, Illinois. All information and
sources are readily confirmed with an online search, and links to
information about feedbacks can be found here.
Large-sale assessments
Intergovernmental
Panel on Climate Change (late 2007): >1.8 C by 2100 (up to 4.5 C,
depending upon emissions scenarios)
Hadley
Centre for Meteorological Research (late 2008): ~2 C by 2100
Later
in 2008, Hadley Center’s head of climate change predictions Dr.
Vicky Pope calls for a worst-case outcome of more than 5 C by 2100.
Joe Romm, writing for
Grist, claims, “right now even Hadley [Centre] understands it
[> 5 C] is better described as the ‘business-as-usual’ case.”
United
Nations Environment Programme (mid 2009): 3.5 C by 2100
Global
Carbon Project, Copenhagen Diagnosis (November 2009): 6 C, 7 C by
2100
United
Nations Environment Programme (December 2010): up to 5 C by 2050
International
Energy Agency (May 2014): 6 C by 2050 with business as usual
These
assessments fail to account for significant self-reinforcing feedback
loops (i.e., positive feedbacks, the term that implies the opposite
of its meaning). The IPCC’s vaunted Fifth Assessment continues the
trend as it, too, ignores
important feedbacks (also listen here).
As with prior reports, the Fifth Assessment “has
been altered after the expert review stage, with changes added that
downplay the economic impacts of a warming planet.” Consider,
for example, the failure to mention Arctic ice in the Working
Group Summary released 31 March 2014 (additional links here).
By 3 September 2014, even Business
Insider
was announcing
via headline: “The Arctic Sea Ice Problem Is Actually Worse —
Not Better — Than We Thought.” The importance of Arctic ice in
delaying catastrophic warming is enormous, as explained
quite simply in 2007:
Anyone
who does not know what Latent Heat is will have a false sense of
security. It is not hard to understand if I do not use physics
jargon. Place on a hot stove a pot of cold water containing 1 kg of
ice cubes. Stir the ice water with a long thermometer and take
temperature readings. My question is: When will the thermometer begin
to show a rise in temperature? Answer: After all the ice has melted.
In other words, all the heat from the stove would first all go into
melting the ice, without raising the water temperature. The amount of
heat entering a system without raising the temperature of the system
is called Latent Heat. It takes 80 calories of heat to melt one gram
of ice. So in this case, the first 80,000 calories of heat from the
stove went into melting the 1 kg of ice first. Only when the ice is
all gone will the water temperature rise, and it will do so until it
reaches 100C, when the water will begin to boil. Once again, Latent
Heat comes into play, and the water temperature will stabilize at the
boiling point – until all the water have changed from liquid to
vapour, at which point the temperature of the dry pot will rise to
the temperature of the flame itself. So how does this apply to
Earth’s climate? Consider the Arctic Ocean to be a gigantic pot of
ice water, and the sun as the stove. For as long as there is still
sea ice to melt, the Arctic Ocean will remain relatively cool, in
spite of the ever increasing solar heat entering the Arctic ocean due
to ever decreasing ice cover. When the sea ice is gone in the summer,
as early as the latter part of this decade, the Arctic Ocean’s
temperature will steeply rise, and when it does, so will the global
mean temperature, and all hell will break lose (sic).
Between
now and then, the Arctic Ocean continues to warm up. Some parts are
warming faster than others, and ice is still providing a tremendous
cooling impact where it persists.
On
a positive note, major assessments fail to account for economic
collapse. However, due to the four-decade lag between emissions
and temperature rise, the inconvenient fact that the world has
emitted
more than twice the industrial carbon dioxide emissions since 1970 as
we did from the start of the Industrial Revolution through 1970,
and also due to the feedback loops described below, I strongly
suspect it’s too late for economic collapse to extend the run of
our species. Indeed, as pointed
out by Bruce Melton at Truth-out in a 26 December 2013 piece
featuring climate scientist Wallace Broeker: “today we are
operating on atmospheric concentrations of greenhouse gases from the
1970s. In the last 29 years we have emitted as many greenhouse gases
as we emitted in the previous 236 years. Because of the great cooling
effect of the oceans, we have not yet begun to see the warming that
this recent doubling of greenhouse gases will bring.” Greenhouse
gas emissions continue to accelerate even as the world’s industrial
economy slows to a halt: Emissions grew nearly twice as fast during
the first decade of the new millennium as in the previous 30 years,
as reported
in the 11 April 2014 issue of The Guardian.
As
it turns out, the so-called 40-year lag is dangerously conservative.
A paper
in the 3 December 2014 issue of Environmental Research Letters
indicates that maximum
warming from carbon dioxide emissions occurs about one decade after a
carbon dioxide emission.
Rising emissions during each of the last many decades points to a
truly catastrophic future, and not long from now. ** According to a
paper
in the May 2015 issues of Geophysical Research Letters,
the planetary warming potential of carbon dioxide outstrips its
warming potential for individual use within two months, and the
carbon dioxide’s cumulative radiative forcing exceeds the amount of
energy released upon combustion by a factor of more than 100,000. **
Guy
Callendar pointed out the delayed influence of rising carbon dioxide
on temperature in a 1938 paper in the Quarterly
Journal of the Royal Meteorological Society.
The hand-drawn figure from the paper shown below clearly illustrates
an irreversible rise in global-average temperature beginning about
1915, a few decades after the consumption of fossil fuels increased
substantially. Callendar’s work was used by J.S.
Sawyer in a 1972 paper published in Nature
to predict an “increase of 25% CO2 expected by the end of the
century … [and] … an increase of 0.6°C in the world temperature”
with stunning accuracy.
Astrophysicists
have long believed Earth was near the center of the habitable zone
for humans. Recent
research published in the 10 March 2013 issue of Astrophysical
Journal
indicates
Earth is on the inner edge of the habitable zone, and lies within 1%
of inhabitability (1.5 million km, or 5 times the distance from Earth
to Earth’s moon). A minor change in Earth’s atmosphere removes
human habitat. Unfortunately, we’ve invoked major changes.
The
northern hemisphere is particularly susceptible to accelerated
warming, as
explained in the 8 April 2013 issue of Journal
of Climate.
Two days later, a paper in Nature
confirmed that summers
in the northern hemisphere are hotter than they’ve been for 600
years. As pointed
out by Sherwood and Huber in the 25 May 2012 issue of the
Proceedings
of the National Academy of Sciences
and then by James Hansen in
his 15 April 2013 paper, humans cannot survive a wet-bulb
temperature of 35 C (95 F).
As
described by the United
Nations Advisory Group on Greenhouse Gases in 1990, “Beyond 1
degree C may elicit rapid, unpredictable and non-linear responses
that could lead to extensive ecosystem damage” (link mirrored
here).
But, as David Spratt points out
in this video from October 2014, 0.5 C is
was a more reasonable target (he fails to recognize that 2 C is
already locked in). James
Hansen and crew finally caught up to the dire nature of 1 C warming
23 years after the U.N. warning, 28 self-reinforcing feedback
loops too late.
How
important are these less-than-2 C targets? James Hansen is quoted in
a 4
January 2011 interview with The Independent:
“Two degrees Celsius is guaranteed disaster.” And consider the 8
November 2014 headline at Al Jazeera America: “Capping warming at 2
C not enough to avert disaster, climate experts warn.” Neither
source recognizes that 2 C is already assured.
We’ve
clearly triggered the types of positive feedbacks the United Nations
warned about in 1990. Yet my colleagues and acquaintances think we
can and will work our way out of this horrific mess with the tools of
industrial civilization (which, got us into this mess, as pointed out
by Tim Garrett) or permaculture (which is not to denigrate
permaculture, the principles of which are implemented at the mud
hut). Reforestation doesn’t come close to overcoming combustion of
fossil fuels,str as pointed
out in the 30 May 2013 issue of Nature Climate Change.
Furthermore, forested ecosystems do not sequester additional carbon
dioxide as it increases in the atmosphere, as disappointingly
explained
in the 6 August 2013 issue of New Phytologist.
Adding egregious insult to spurting wound, the latest
public-education initiative in the United States — the Next
Generation Science Standards — buries the relationship between
combustion of fossil fuels and planetary warming. The misadventures
of the corporate government continue, even as collapse of ecosystems
is fully under way. As pointed
out in the April 2013 issue of PLoS ONE — too little, too late
for many ecosystems — “catastrophic collapses can occur without
prior warning.”
Some
green-washing solutionistas take refuge in the nuclear solution. It’s
astonishing what one can conclude when grid-tied electricity is a
viewed as a natural right. James Hansen’s endorsement
notwithstanding, nuclear
power plants cause, rather than prevent, additional warming of Earth.
Let’s
ignore the models for a moment and consider only the results of a
single
briefing to the United Nations Conference of the Parties in
Copenhagen (COP15). Regulars in this space will recall COP15 as
the climate-change meetings thrown under the bus by the Obama
administration. The summary for that long-forgotten briefing contains
this statement: “THE LONG-TERM SEA LEVEL THAT CORRESPONDS TO
CURRENT CO2 CONCENTRATION IS ABOUT 23 METERS ABOVE TODAY’S LEVELS,
AND THE TEMPERATURES WILL BE 6 DEGREES C OR MORE HIGHER. THESE
ESTIMATES ARE BASED ON REAL LONG TERM CLIMATE RECORDS, NOT ON
MODELS.”
In
other words, near-term extinction of humans was already guaranteed,
to the knowledge of Obama and his administration (i.e., the Central
Intelligence Agency, which runs the United States and controls
presidential power). Even before the dire feedbacks were reported by
the scientific community, the administration abandoned climate change
as a significant issue because it knew we were done as early as 2009.
Rather than shoulder the unenviable task of truth-teller, Obama did
as his imperial higher-ups demanded: He lied about collapse, and he
lied about climate change. And he still does.
Ah,
those were the good ol’ days, back when atmospheric carbon dioxide
concentrations were well below 400 parts per million (ppm). We’ll
blow
through the 400 ppm mark soon, probably for the first time in 3.2 to
5 million years. And, as reported
in the journal Global and Planetary Change in April 2013, every
molecule of atmospheric carbon dioxide since 1980 comes from human
emissions. Not to be outdone, methane
levels reached an average mean of 1800 parts per billion (ppb) on the
morning of 16 June 2013. The SWERUS
C-3 expedition reported a second major methane seep on 3 August 2014
in the East Siberian Sea, including a local methane release of 3,188
ppb. Tacking on a few of the additional greenhouse gases
contributing to climate change and taking a conservative approach
jacks
up the carbon dioxide equivalent to 480 ppm (and see here,
from NOAA). Seeps
are appearing in numerous locations off the eastern coast of the
United States, leading
to rapid destabilization of methane hydrates (according to the 25
October 2013 issue of Nature).
On land, anthropogenic emissions of methane in the United States have
been severely underestimated by the Environmental Protection (sic)
Agency, according
to a paper in the 25 November 2013 issue of Proceedings
of the National Academy of Sciences.
This figure is 1100 ppb higher than pre-industrial peak levels.
Methane release tracks closely with temperature rise throughout Earth
history — specifically, Arctic
methane release and rapid global temperature rise are interlinked
— including a temperature rise up to about 1 C per year over a
decade, according to data from
ice cores. The tight linkage between Arctic warming and planetary
warming was verified in an article in the 2 February 2014 issue
Nature
Geoscience,
which found that the
Arctic’s cap of cold, layered air plays a more important role in
boosting polar warming than does its shrinking ice and snow cover. A
layer of shallow, stagnant air acts like a lid, concentrating heat
near the surface. Finally, adding fuel to the growing fire, a
paper
in the 27 March 2014 issue of Nature
articulates the strong interconnection between methane release and
temperature rise: “For
each degree that Earth’s temperature rises, the amount of methane
entering the atmosphere … will increase several times. As
temperatures rise, the relative increase of methane emissions will
outpace that of carbon dioxide.”
How
long will the hangover persist, after we’re done with the
fossil-fuel party? According
to University of Chicago oceanographer David Archer: “The
climatic impacts of releasing fossil fuel CO2
to the atmosphere will last longer than Stonehenge,” Archer writes
in his January 2008 book The
Long Thaw.
“Longer than time capsules, longer than nuclear waste, far longer
than the age of human civilization so far.”
Self-Reinforcing
Feedback Loops
(also see analysis here)
1.
This description combines sub-sea permafrost and methane hydrates in
the Arctic. The two sources of methane are sufficiently similar to
warrant considering them in combination. MSNBC
knew about methane release from beneath the Arctic Ocean in 2007.
Oddly, they seem to be ignorant about it today.
About
250 plumes of methane hydrates are escaping from the shallow Arctic
seabed, likely as a result of a regional 1 C rise in temperature, as
reported in the 6 August 2009 issue of Geophysical Research Letters.
Methane bubbling
out the Arctic Ocean is further elucidated in Science
in March 2010. As described in a subsequent paper
in the June 2010 issue of Geophysical Research Letters, a minor
increase in temperature would cause the release of upwards
of 16,000 metric tons of methane each year. Storms accelerate the
release, according
to research published in the 24 November 2013 issue of Nature
Geoscience The latter paper also concludes
the East Siberian Arctic Shelf is venting at least 17 teragrams of
the methane into the atmosphere each year, up from 0.5
teragrams just 7 years earlier (a teragram is equal to 1 million
tons). According to NASA’s
CARVE project, these plumes were up to 150 kilometers across as of
mid-July 2013. Global-average temperature is expected to rise by
more than 4 C by 2030 and 10 C by 2040 based solely on methane
release from the Arctic Ocean, according to Sam
Carana’s research (see especially Image 24). Whereas Malcolm
Light’s 9 February 2012 forecast of extinction of all life on Earth
by the middle of this century appeared premature because his
conclusion of exponential methane release during summer 2011 was
based on data subsequently revised and smoothed by U.S. government
agencies, subsequent information — most notably from NASA’s CARVE
project — indicates the grave potential for catastrophic release of
methane. (I doubt industrial civilization manages to kill all life on
Earth, although that clearly is the goal.) Catastrophically rapid
release of methane in the Arctic is further supported by Nafeez
Ahmed’s thorough analysis in the 5 August 2013 issue of the
Guardian as well as Natalia
Shakhova’s 29 July 2013 interview with Nick Breeze (note the
look of abject despair at the eight-minute mark). The 16
August 2013 issue of Geophysical Research Letters includes a report
of the Siberian Kara Sea where “Arctic shelf region where seafloor
gas release is widespread suggests that permafrost has degraded more
significantly than previously thought.” In early November 2013,
methane
levels well in excess of 2,600 ppb were recorded at multiple
altitudes in the Arctic. Later that same month, Shakhova and
colleagues published a paper in Nature
Geoscience suggesting “significant quantities of methane are
escaping the East Siberian Shelf” and indicating that a
50-billion-tonne
“burst” of methane could warm Earth by 1.3 C. Such a burst of
methane is “highly
possible at any time.”
By
15
December 2013, methane bubbling up from the seafloor of the Arctic
Ocean had sufficient force to prevent sea ice from forming in the
area. Nearly two years after his initial, oft-disparaged
analysis, Malcolm Light concluded
on 22 December 2013, “we have passed the methane hydrate tipping
point and are now accelerating into extinction as the methane hydrate
‘Clathrate Gun’ has begun firing volleys of methane into the
Arctic atmosphere.” According to Light’s analysis in late 2013,
the temperature of Earth’s atmosphere will resemble that of Venus
before 2100. Two weeks later, in an essay stressing near-term human
extinction, Light concluded:
“The Gulf Stream transport rate started the methane hydrate
(clathrate) gun firing in the Arctic in 2007 when its energy/year
exceeded 10 million times the amount of energy/year necessary to
dissociate subsea Arctic methane hydrates.” The refereed journal
literature, typically playing catch-up with reality, includes an
article in the 3 February 2014 issue of Journal of Geophysical
Research: Earth Surface claiming, “Sustained submergence into the
future should increase gas venting rate roughly exponentially as
sediments continue to warm.” Not surprisingly, the clathrate gun
began firing in 2007, the same
year the extent of Arctic sea ice reached a tipping point.
Further confirmation the clathrate gun had been fired came from
Stockholm
University’s Örjan Gustafsson, who reported from the Laptev Sea on
23 July 2014: “results of preliminary analyses of seawater
samples pointed towards levels of dissolved methane 10-50 times
higher than background levels.” Jason
Box responds to the news in the conservative fashion I’ve come to
expect from academic scientists on 27 July 2014: “What’s the
take home message, if you ask me? Because elevated atmospheric carbon
from fossil fuel burning is the trigger mechanism poking the climate
dragon. The trajectory we’re on is to awaken a runaway climate
heating that will ravage global agricultural systems leading to mass
famine, conflict. Sea level rise will be a small problem by
comparison.” Later, during
an interview with Vice published 1 August 2014, Box loosened up a
bit, saying, “Even if a small fraction of the Arctic carbon
were released to the atmosphere, we’re fucked.” Trust me, Jason,
we’re there.
Simultaneous
with the Laptev Sea mission, several large holes were discovered in
Siberia. The reaction from an article
published in the 31 July 2014 issue of Nature indicates
atmospheric methane levels more than 50,000 times the usual. An
article in the 4
August 2014 edition of Ecowatch ponders the holes: “If you have
ever wondered whether you might see the end of the world as we know
it in your lifetime, you probably should not read this story, nor
study the graphs, nor look at the pictures of methane blowholes aka
dragon burps.”
One
of the authors of two research
papers rooted in the Siberian Kara Sea concluded
on 22 December 2014, “If the temperature of the oceans
increases by two degrees as suggested by some reports, it will
accelerate the thawing to the extreme. A warming climate could lead
to an explosive gas release from the shallow areas.” As we’ve
known for a few years, 2 C is locked in.
By
late February 2015, the
Siberian crater saga had become “more widespread — and scarier —
than anyone thought,” with numerous reports from the mainstream
media. Naturally, these reports focused on economic impacts and the
need for further research.
The
importance of methane cannot be overstated. Increasingly, evidence
points to a methane burst underlying the Great Dying associated with
the end-Permian extinction event, as pointed
out in the 31 March 2014 issue of Proceedings of the National Academy
of Sciences. As Malcolm
Light reported on 14 July 2014: “There are such massive
reserves of methane in the subsea Arctic methane hydrates, that if
only a few percent of them are released, they will lead to a jump in
the average temperature of the Earth’s atmosphere of 10 degrees C
and produce a ‘Permian’ style major extinction event which will
kill us all. Apparently a 5 C rise in global-average temperature was
responsible for the Great Dying, according to Michael
Benton’s book on the topic. In that case, the rise is
temperature requires tens of thousands of years.
Discussion
about methane release from the Arctic Ocean has been quite heated
(pun intended). Paul Beckwith was criticized by the conservative
website, Skeptical Science. His response from 9 August 2013 is here.
Robert
Scribbler provides a terrifying summary 24 February 2014, and
concludes,
“two particularly large and troubling ocean to atmosphere methane
outbursts were observed” in the Arctic Ocean. Such an event hasn’t
occurred during the last 45 million years. Scribbler’s bottom line:
“that time of dangerous and explosive reawakening, increasingly,
seems to be now.”
Sam
Carana includes the figure below in his 10
September 2014 analysis. Based on data from several reputable
sources, exponential release of methane clearly is under way. Robert
Scribbler reaches
the conclusion, finally, on 8 December 2014.
2. Warm Atlantic water is defrosting the Arctic as it shoots through the Fram Strait (Science, January 2011). Extent of Arctic sea ice passed a tipping point in 2007, according to research published in the February 2013 issue of The Cryosphere. On 6 October 2012, Truth-out cites Peter Wadhams, professor of ocean physics at Cambridge University: “The Arctic may be ice-free in summer as soon as 2015. Such a massive loss would have a warming effect roughly equivalent to all human activity to date. In other words, a summer ice-free Arctic could double the rate of warming of the planet as a whole.” Subsequent melting of Arctic ice is reducing albedo, hence enhancing absorption of solar energy. According to NASA on 17 December 2014, “the rate of absorbed solar radiation in the Arctic in June, July and August has increased by five percent” since 2000. “Averaged globally, this albedo change is equivalent to 25% of the direct forcing from CO2 during the past 30 years,” according to research published in the 17 February 2014 issue of the Proceedings of the National Academy of Sciences. Destabilization of the deep circulation in the Atlantic Ocean may be “spasmodic and abrupt rather than a more gradual increase” as earlier expected, according to a paper published in the 21 February 2014 issues of Science. Models continue to underestimate results relative to observations, as reported in the 10 March 2014 issue of Geophysical Research Letters. Consider, for example, the thinning “by more than 50 metres since 2012 — about one sixth of its original thickness — and that it is now flowing 25 times faster,” as reported in the 23 December 2014 issue of Geophysical Research Letters.
3.
Peat in the world’s boreal forests is decomposing at an astonishing
rate (Nature Communications, November 2011)
4.
Ozone, a powerful greenhouse gas, also contributes to mortality of
trees (Global
Change Biology, November 2011). Tree mortality reduces uptake of
atmospheric carbon dioxide and instead accelerates the contribution
of carbon dioxide into the atmosphere. Forest dieback resulting from
atmospheric ozone is the primary topic addressed by Gail Zawacki at
Wit’s End.
5.
Invasion of tall shrubs warms the soil, hence destabilizes the
permafrost (Environmental Research Letters, March 2012)
6.
Greenland
ice is darkening (The
Cryosphere, June 2012). As reported
in the 8 June 2014 issue of Nature Geoscience, “a decrease in
the albedo of fresh snow by 0.01 leads to a surface mass loss of 27
Gt” annually. Any
reduction in albedo is a disaster, says Peter Wadhams, head of the
Polar Oceans Physics Group at Cambridge University. As pointed
out by Robert
Scribbler on 1 August 2014, we’ve removed the plug and, like
the water leaving a tub, acceleration is under way: “Extensive
darkening of the ice sheet surface, especially near the ice sheet
edge, is resulting in more solar energy being absorbed by the ice
sheet. Recent studies have shown that edge melt results in rapid
destabilization and speeds glacier flows due to the fact that edge
ice traditionally acts like a wall holding the more central and
denser ice pack back.” Jason Box registers his surprise with a
photo
essay on 29 October 2014. A paper
in the 15 December 2014 issue of Proceedings of the National Academy
of Sciences provides the first comprehensive picture of how
Greenland’s ice is vanishing and concludes
“that Greenland may lose ice more rapidly in the near future than
previously thought.”
7.
Methane is being released from the Antarctic, too (Nature, August
2012). According to a paper
in the 24 July 2013 issue of Scientific Reports, melt rate in the
Antarctic has caught
up to the Arctic and the West Antarctic Ice Sheet is losing over
150 cubic kilometres of ice each year according
to CryoSat observations published 11 December 2013, and
Antarctica’s crumbling Larsen-B Ice Shelf is poised to finish its
collapse, according
to Ted Scambos, a glaciologist at the National Snow and Ice Data
Center at the annual meeting of the American Geophysical Union. A
paper in the 12
September 2014 issue of Science concluded the major collapse of
the Larsen-B Ice Shelf in 2002 resulted from warm local air
temperatures, indicating the importance of global and local warming
on ice dynamics. Two days later a paper
in Nature Climate Change indicates that this sensitivity to
temperature illustrates “that future increases in precipitation are
unlikely to offset atmospheric-warming-induced melt of peripheral
Antarctic Peninsula glaciers.” A study
published in the 1 June 2015 issue of Earth and Planetary Science
Letters finds the last remaining section of Antarctica’s Larsen
B Ice Shelf, which partially collapsed in 2002, is quickly weakening
and is likely to disintegrate completely before the end of the
decade. Meanwhile, the Larsen-C Ice Shelf is poised to collapse,
according to an article
in the 13 May 2015 issue of The Cryosphere. The rate
of loss during the period 2010-2013 was double that during the period
2005-2010, according
to a paper in the 16 June 2014 issue of Geophysical Research Letters.
By mid-May 2015 the sudden onset of ice loss in Antarctica was large
enough to affect Earth’s gravity field, as reported
in the 21 May 2015 issue of Science. According to NASA
climate scientist Eric Rignot in early 2015, “the fuse is blown.”
Rignot goes on to explain this “shattering” moment and also
points out the utter ineptitude by climate scientists at explaining
the situation to the public. According
to research reported in the 26 March 2015 issue of Science, “West
Antarctic losses increased by 70% in the last decade, and earlier
volume gain by East Antarctic ice shelves ceased.” Loss of
Antarctic ice is accelerating even in areas long considered stable,
as documented
in the 24 July 2013 edition of Scientific Reports. Based on
gravity data published
in the 1 April 2015 issue of Earth and Planetary Science Letters:
“During
the past decade, Antarctica’s massive ice sheet lost twice the
amount of ice in its western portion compared with what it
accumulated in the east, according to Princeton University
researchers who came to one overall conclusion — the southern
continent’s ice cap is melting ever faster.” Further
confirmation of large methane releases is revealed by noctilucent
clouds over the southern hemisphere from 21 November 2013 to 6
December 2013.
8.
Forest and bog fires are growing (in Russia, initially, according to
NASA in August 2012), a phenomenon consequently apparent
throughout the northern hemisphere (Nature Communications, July
2013). The New York Times reports
hotter, drier conditions leading to huge fires in western North
America as the “new normal” in their 1 July 2013 issue. A paper
in the 22 July 2013 issue of the Proceedings of the National Academy
of Sciences indicates boreal forests are burning at a rate
exceeding that of the last 10,000 years. Los Alamos National
Laboratory catches
on during same month. According to reports from Canada’s
Interagency Fire Center, total
acres burned to date in early summer 2014 are more than six times
that of a typical year. This rate of burning is unprecedented not
just for this century, but for any period in Canada’s basement
forest record over the last 10,000 years. A comprehensive
assessment of biomass burning, published in the 21 July 2014 issue of
Journal of Geophysical Research: Atmospheres, explains most of
the global-average increase in temperature and explains that biomass
burning causes much more global warming per unit weight than other
human-associated carbon sources. By early August
2014 tundra fires were burning just 70 miles south of Arctic Ocean
waters and the fires
were creating their own weather via pyrocumulus clouds.
Ignition
sources are on the rise, too. According
to a paper in the 14 November 2014 issue of Science, each 1 C
rise in global-average temperature contributes to a 12 ± 5% increase
in lightning strikes.
9.
Cracking
of glaciers accelerates in the presence of increased carbon dioxide
(Journal of Physics D: Applied Physics, October 2012)
10.
The Beaufort
Gyre apparently has reversed course (U.S. National
Snow and Ice Data Center, October 2012). Mechanics of this
process are explained by the Woods Hole Oceanographic Institution
here.
11.
Exposure
to sunlight increases bacterial conversion of exposed soil carbon,
thus accelerating thawing of the permafrost (Proceedings of the
National Academy of Sciences, February 2013). Subsequent carbon
release “could be expected to more than double overall net C losses
from tundra to the atmosphere,” as reported
in the March 2014 issue of Ecology. Arctic permafrost houses
about half the carbon stored in Earth’s soils, an estimated 1,400
to 1,850 petagrams of it, according
to NASA. Peat chemistry changes as warming proceeds, which
accelerates the process, as reported
in the 7 April 2014 issue of Proceedings of the National Academy of
Sciences.
12.
The microbes have joined the party, too, according to a paper
in the 23 February 2013 issue of New Scientist. A subsequent
paper in the 22 October 2014 issue of Nature illustrates the key
role of a single species of microbe in amplifying climate change.
13.
According to a paper
in the 12 April 2013 issue of Science, a major
methane release is almost inevitable from permafrost in Alaska,
which makes me wonder where the authors have been hiding. Almost
inevitable, they report, regarding an ongoing event. Trees
are tipping over and dying as permafrost thaws, thus illustrating
how self-reinforcing feedback loops feed each other. A
paper in the 6 April 2015 online issue of Nature concludes: “The
heat production is not only expected to accelerate the organic carbon
decomposition and potentially the amounts of carbon emitted to the
atmosphere but could be the tipping point that will lead to the loss
of evidence of early human history in the Arctic, which so far has
been extremely well preserved in the top permafrost.” The rapidly
decaying permafrost is largely recent in origin, according to a paper
in the 27 April 2015 issue of Geophysical Research Letters, and
is leading to a “runaway
effect.” The resulting carbon is entering “the
atmosphere at breakneck speed,” according to an analysis
published in the 27 April 2015 issue of Geophysical Research Letters.
14.
Summer
ice melt in Antarctica is at its highest level in a thousand years:
Summer ice in the Antarctic is melting 10 times quicker than it was
600 years ago, with the most rapid melt occurring in the last 50
years (Nature
Geoscience, April 2013). According to a paper
in the 4 March 2014 issue of Geophysical Research Letters —
which assumes relatively little change in regional temperature during
the coming decades — “modeled summer sea-ice concentrations
decreased by 56% by 2050 and 78% by 2100″ (Robert Scribbler’s
in-depth analysis is here).
Citing forthcoming papers in Science and Geophysical Research
Letters, the 12 May 2014 issue of the New York Times reported:
“A large section of the mighty West Antarctica ice sheet has begun
falling apart and its continued melting now appears to be
unstoppable. … The new finding appears to be the fulfillment of a
prediction made in 1978 by an eminent glaciologist, John H. Mercer of
the Ohio State University. He outlined the vulnerable nature of the
West Antarctic ice sheet and warned that the rapid human-driven
release of greenhouse gases posed ‘a threat of disaster.'”
Although scientists have long expressed concern about the instability
of the West Antarctic Ice Sheet (WAIS), a research paper published in
the 28 August 2013 of Nature indicates
the East Antarctic Ice Sheet (EAIS) has undergone rapid changes in
the past five decades. The latter is the world’s largest ice
sheet and was previously thought to be at little risk from climate
change. But it has undergone rapid changes in the past five decades,
signaling a potential threat to global sea levels. The EAIS holds
enough water to raise sea levels more than 50 meters. According to a
paper in the July
2014 issue of the same journal, the southern hemisphere’s
westerly winds have been strengthening and shifting poleward since
the 1950s, thus quickening the melt rate to the point of — you
guessed it — “results
that shocked the researchers.” A paper
presented at the late 2014 meeting of the American Geophysical Union
concludes, “comprehensive, 21-year analysis of the
fastest-melting region of Antarctica has found that the melt rate of
glaciers there has tripled during the last decade.” The 16
March 2015 online issue of Nature Geoscience adds to the misery
and identifies melting from below Totten Glacier.
15.
Increased temperature and aridity in the southwestern interior of
North America facilitates movement
of dust from low-elevation deserts to high-elevation snowpack,
thus accelerating snowmelt, as reported
in the 17 May 2013 issue of Hydrology and Earth System Sciences.
16.
Floods
in Canada are sending pulses of silty water out through the Mackenzie
Delta and into the Beaufort Sea, thus painting brown a wide section
of the Arctic Ocean near the Mackenzie Delta brown (NASA, June
2013). Pictures of this phenomenon are shown on this
NASA website.
17.
Surface meltwater draining through cracks in an ice sheet can warm
the sheet from the inside, softening the ice and letting it flow
faster, according
to a study accepted for publication in the Journal of Geophysical
Research: Earth Surface (July 2013). Further support for this
idea was reported
in the 29 September 2014 issue of Nature Communications. It
appears a Heinrich Event has been triggered in Greenland. Consider
the description of such an event as provided
by Robert Scribbler on 8 August 2013:
In
a Heinrich Event, the melt forces eventually reach a tipping point.
The warmer water has greatly softened the ice sheet. Floods of water
flow out beneath the ice. Ice ponds grow into great lakes that may
spill out both over top of the ice and underneath it. Large ice damns
(sic) may or may not start to form. All through this time ice motion
and melt is accelerating. Finally, a major tipping point is reached
and in a single large event or ongoing series of such events, a
massive surge of water and ice flush outward as the ice sheet enters
an entirely chaotic state. Tsunamis of melt water rush out bearing
their vast floatillas (sic) of ice burgs (sic), greatly contributing
to sea level rise. And that’s when the weather really starts to get
nasty. In the case of Greenland, the firing line for such events is
the entire North Atlantic and, ultimately the Northern Hemisphere.
18.
Breakdown of the thermohaline conveyor belt is happening
in the Antarctic as well as the Arctic, thus leading to melting
of Antarctic permafrost (Scientific Reports, July 2013). In
the past 60 years, the ocean surface offshore Antarctica became less
salty as a result of melting glaciers and more precipitation, as
reported in the 2 March 2014 issue of Nature Climate Change.
19.
Loss of Arctic sea ice is reducing the temperature gradient between
the poles and the equator, thus causing
the jet stream to slow and meander (see particularly the work
of Jennifer Francis, as well as this
article in the 20 November 2014 issue of the Washington Post).
The most
extreme “dipole” on record occurred during 2013-2014, as
reported
in the Geophysical Research Letters. One result is the creation
of weather
blocks such as the recent very high temperatures in Alaska. This
so-called “polar vortex” became widely reported in the United
States in 2013 and received
the attention of the academic community when the 2013-2014
drought threatened crop production in California. Extreme weather
events are occurring, as reported in
the 22 June 2014 issue of Nature Climate Change. Also called
Rossby Waves, these
atmospheric events are on the rise, as reported
in the 11 August 2014 edition of the Proceedings of the National
Academy of Science. A paper
co-authored by Francis in the 6 January 2015 issue of Environmental
Research Letters concludes with this line in the abstract: “These
results suggest that as the Arctic continues to warm faster than
elsewhere in response to rising greenhouse-gas concentrations, the
frequency of extreme weather events caused by persistent jet-stream
patterns will increase.” Regarding the Rossby Waves, a paper
in the 24 April 2015 edition of Journal of Geophysical Research:
Atmospheres includes this comment: “We also found a positive
feedback mechanism resulting from the anomalous meridional
circulation that cools the mid-latitudes and warms the Arctic, which
adds an extra heating to the Arctic air column equivalent to about
60% of the direct surface heat release from the sea-ice reduction.”
As
one result
of the polar vortex, boreal
peat dries and catches fire like a coal seam (also see this
paper in Nature, published online 23 December 2014, indicating
“the amount of carbon stored in peats exceeds that stored in
vegetation and is similar in size to the current atmospheric carbon
pool”). The resulting soot enters the atmosphere to fall again,
coating the ice surface elsewhere, thus reducing albedo and hastening
the melting of ice. Each of these individual phenomena has been
reported, albeit rarely, but to my knowledge the dots have not been
connected beyond this space. The inability or unwillingness of the
media to connect two dots is not surprising, and has been routinely
reported (recently including here
with respect to climate change and wildfires) (July 2013)
21.
Extreme
weather events drive climate change, as reported
in the 15 August 2013 issue of Nature (Nature, August 2013).
Details are elucidated via modeling in the 6
June 2014 issue of Global Biogeochemical Cycles. Further data and
explanation are presented in the 27
April 2015 online issue of Nature Climate Change.
22.
Drought-induced mortality of trees contributes to increased
decomposition of carbon dioxide into the atmosphere and decreased
sequestration of atmospheric carbon dioxide. Such mortality has been
documented throughout the world since at least November
2000 in Nature, with recent summaries in the February
2013 issue of Nature for the tropics and in the August
2013 issue of Frontiers in Plant Science for temperate North America.
One
extremely important example of this phenomenon is occurring in the
Amazon, where drought in 2010 led to the release of more carbon than
the United States that year (Science, February 2011). The calculation
badly
underestimates the carbon release. In addition, ongoing
deforestation in the region is driving declines in precipitation at a
rate much faster than long thought, as reported
in the 19 July 2013 issue of Geophysical Research Letters. An
overview of the phenomenon, focused on the Amazon, was provided
by Climate News Network on 5 March 2014. “The observed decline
of the Amazon sink diverges markedly from the recent increase in
terrestrial carbon uptake at the global scale, and is contrary to
expectations based on models,” according to a paper
in the 19 March 2015 issue of Nature.
Tropical
rain forests, long believed to represent the primary driver of
atmospheric carbon dioxide, are on the verge of giving up that role.
According to a 21 May 2014 paper
published in Nature, “the higher turnover rates of carbon pools
in semi-arid biomes are an increasingly important driver of global
carbon cycle inter-annual variability,” indicating the emerging
role of drylands in controlling environmental conditions. “Because
of the deforestation of tropical rainforests in Brazil, significantly
more carbon has been lost than was previously assumed.” In
fact, “forest fragmentation results in up to a fifth more carbon
dioxide being emitted by the vegetation.” These
results come from the 7 October 2014 issue of Nature Communications.
23.
Ocean
acidification leads to release of less dimethyl sulphide (DMS) by
plankton. DMS shields Earth from radiation. (Nature
Climate Change, online 25 August 2013). Plankton form the base of
the marine food web, and are on
the verge of disappearing completely, according
to a paper in the 18 October 2013 issue of Global Change Biology.
As with carbon
dioxide, ocean acidification is occurring rapidly, according
to a paper in the 26 March 2014 issue of Global Biogeochemical
Cycles. Acidification is proceeding at a pace unparalleled during
the last 300 million years, according to research
published in the 2 March 2012 issue of Science.
24.
Jellyfish have assumed a primary role in the oceans of the world (26
September 2013 issue of the New York Times Review of Books, in a
review of Lisa-ann Gershwin’s book, Stung! On Jellyfish Blooms and
the Future of the Ocean): “We are creating a world more like the
late Precambrian than the late 1800s — a world where jellyfish
ruled the seas and organisms with shells didn’t exist. We are
creating a world where we humans may soon be unable to survive, or
want to.” Jellyfish contribute to climate change via (1) release of
carbon-rich feces and mucus used by bacteria for respiration, thereby
converting bacteria into carbon dioxide factories and (2) consumption
of vast numbers of copepods and other plankton.
25.
Sea-level
rise causes slope collapse, tsunamis, and release of methane, as
reported
in the September 2013 issue of Geology. In
eastern Siberia, the speed of coastal erosion has nearly doubled
during the last four decades as the permafrost melts. And it
appears sea-level rise has gone exponential, judging from Scribbler’s
4 May 2015 analysis.
26.
Rising
ocean temperatures will upset natural cycles of carbon dioxide,
nitrogen and phosphorus, hence reducing plankton (Nature
Climate Change, September 2013). Ocean warming has been
profoundly underestimated since the 1970s according
to a paper published in the online version of Nature Climate Change
on 5 October 2014. Specifically, the
upper 2,300 feet of the Southern Hemisphere’s oceans may have
warmed twice as quickly after 1970 than had previously been thought.
According to a 22
January 2015 article in The Guardian, “the oceans are warming
so fast, they keep breaking scientists’ chats.”
27.
Earthquakes trigger methane release, and consequent warming of the
planet triggers earthquakes, as reported
by Sam Carana at the Arctic Methane Emergency Group (October
2013)
28.
Small
ponds in the Canadian Arctic are releasing far more methane than
expected based on their aerial cover (PLoS
ONE, November 2013). This is the first of several freshwater
ecosystems releasing methane into the atmosphere, as reviewed
in the 19 March 2014 issue of Nature and subsequently described
by a large-scale
study in the 28 April 2014 issue of Global Change Biology.
Release of methane from these sources in the Arctic and Greenland,
according
to the 20 May 2012 issue of Nature Geoscience, “imply that in a
warming climate, disintegration of permafrost, glaciers and parts of
the polar ice sheets could facilitate the transient expulsion of
14C-depleted
methane trapped by the cryosphere cap.”
The
mechanism underlying methane release in these systems is poorly
understood. If sunlight drives the process, as suggestd by a paper
in the 22 August 2014 issue of Science, then amplification is
expected over time as ponds and lakes are increasingly expose.
29.
Mixing of the jet stream is a catalyst, too. High methane releases
follow fracturing of the jet stream, accounting for a previous rise
in regional temperature up to 16 C in less than 20 years (Paul
Beckwith via video on 19 December 2013).
30.
Research indicates
that “fewer clouds form as the planet warms, meaning less sunlight
is reflected back into space, driving temperatures up further still”
(Nature,
January 2014)
31.
“Thawing permafrost promotes microbial degradation o
cryo-sequestered and new carbon leading to the biogenic production of
methane” (Nature
Communications, February 2014)
32.
Over
the tropical West Pacific there is a natural, invisible hole
extending over several thousand kilometers in a layer that prevents
transport of most of the natural and man-made substances into the
stratosphere by virtue of its chemical composition. Like in a giant
elevator, many chemical compounds emitted at the ground pass thus
unfiltered through this so-called “detergent layer” of the
atmosphere. Global
methane emissions from wetlands are currently about 165 teragrams
(megatons metric) each year. This research estimates that annual
emissions from these sources will increase by between 17 and 260
megatons annually. By comparison, the total annual methane emission
from all sources (including the human addition) is about 600 megatons
each year. (Nature
Geoscience, February 2014)
33.
“Volcanologist Bill McGuire describes how rapid melting of glaciers
and ice sheets as a result of climate change could trigger volcanoes,
earthquakes, and tsunamis” (13
February 2014 issue of The Guardian. According to a paper
published online in the 5
February 2015 issue of Geophysical Research Letters, “underwater
volcanoes defy expectations and erupt in bursts rather than a slow
pace.”
34.
Deep ocean currents apparently are slowing. According to one of the
authors of the paper, “we’re likely going to see less uptake of
human produced, or anthropogenic, heat and carbon dioxide by the
ocean, making this a positive feedback loop for climate change.”
Because
this phenomenon contributed to cooling and sinking of the Weddell
polynya: “it’s always possible that the giant polynya will manage
to reappear in the next century. If it does, it will release
decades-worth of heat and carbon from the deep ocean to the
atmosphere in a pulse of warming.” (Nature
Climate Change, February 2014; model results indicate “large
spatial redistribution of ocean carbon,” as reported in the March
2014 issue of the Journal of Climate)
35.
Increased
atmospheric carbon dioxide causes soil microbes to produce more
carbon dioxide (Science,
2 May 2014)
36.
Reductions in seasonal ice cover in the Arctic “result in larger
waves, which in turn provide a mechanism to break up sea ice and
accelerate ice retreat” (Geophysical
Research Letters, 5 May 2014). Further corroboration is found
in the 27 March 2015 issue of Geophysical Research Letters.
37.
A huge hidden network of frozen methane and methane gas, along with
dozens of spectacular flares firing up from the seabed, has been
detected off the North Island of New Zealand (preliminary results
reported
in the 12 May 2014 issue of the New Zealand Herald). The first
evidence of widespread active methane seepage in the Southern Ocean,
off the sub-Antarctic island of South Georgia, was subsequently
reported in the 1 October 2014 issue of Earth and Planetary Science
Letters.
38.
As reported
in the 8 June 2014 issue of Nature Geoscience, rising
global temperatures could increase the amount of carbon dioxide
naturally released by the world’s oceans, fueling further climate
change
39.
As global-average temperature increases, “the
concentrations of water vapor in the troposphere will also increase
in response to that warming. This moistening of the atmosphere, in
turn, absorbs more heat and further raises the Earth’s
temperature.” (Proceedings
of the National Academy of Sciences, 28 July 2014)
40.
Soil
microbial communities release unexpectedly more carbon dioxide when
temperatures rise (Nature,
4 September 2014). As a result, “substantial carbon stores in
Arctic and boreal soils could be more vulnerable to climate warming
than currently predicted.”
41.
“During the last glacial termination, the upwelling strength of the
southern polar limb of the Atlantic Meridional Overturning
Circulation varied, changing the ventilation and stratification of
the high-latitude Southern Ocean. During the same period, at least
two phases of abrupt global sea-level rise—meltwater pulses—took
place.” In other words, when the ocean around Antarctica became
more stratified, or layered, warm water at depth melted the ice sheet
faster than when the ocean was less stratified. (Nature
Communications, 29 September 2014) Robert
Scribbler refers to AMOC as “the heartbeat of the world ocean
system.” As reported
in the 23 March 2015 online issue of Climatic Change, the slowing
of the AMOC is “exceptional” and is tied to melting ice in
Greenland. This twentieth-century slowdown apparently is unique,
at least within the last thousand years.
42.
“Open
oceans are much less efficient than sea ice when it comes to emitting
in the far-infrared region of the spectrum. This means that the
Arctic Ocean traps much of the energy in far-infrared radiation, a
previously unknown phenomenon that is likely contributing to the
warming of the polar climate.” (Proceedings
of the National Academy of Sciences, November 2014)
43.
Dark snow is no longer restricted to Greenland. Rather, it’s come
to much of the northern hemisphere, as reported in the 25
November 2014 issue of the Journal of Geophysical Research. Eric
Holthaus’s description of this phenomenon in the 13
January 2015 edition of Slate includes a quote from one of the
scientists involved in the research project: “The climate models
need to be adding in a process they don’t currently have, because
that stuff in the atmosphere is having a big climate effect.” In
other words, as with the other major self-reinforcing feedback loops,
dark snow is not included in contemporary models.
44.
The “representation of stratospheric ozone in climate models can
have a first-order impact on estimates of effective climate
sensitivity.” (Nature
Climate Change, December 2014)
45.
“While
scientists believe that global warming will release methane from gas
hydrates worldwide, most of the current focus has been on deposits in
the Arctic. This paper estimates that from 1970 to 2013, some 4
million metric tons of methane has been released from hydrate
decomposition off Washington [state]. That’s an amount each year
equal to the methane from natural gas released in the 2010 Deepwater
Horizon blowout off the coast of Louisiana, and 500 times the rate at
which methane is naturally released from the seafloor.”
(Geophysical
Research Letters, online version 5 December 2014)
46.
“An
increase in human-made carbon dioxide in the atmosphere could
initiate a chain reaction between plants and microorganisms that
would unsettle one of the largest carbon reservoirs on the planet —
soil” (Nature
Climate Change, December 2014 )
47.
Increased temperature of the ocean contributes to reduced storage of
carbon dioxide. “Results
suggest that predicted future increases in ocean temperature will
result in reduced CO2 storage by the oceans” (Proceedings of
the National Academy of Sciences, January 2015)
48.
According to a paper
in the 19 January 2015 issue of Nature Geoscience, melting
glaciers contribute subsantial carbon to the atmosphere, with
“approximately 13% of the annual flux of glacier dissolved organic
carbon is a result of glacier mass loss. These losses are expected to
accelerate.”
49.
According to a paper
in the 20 April 2015 online issue of Nature Geoscience, ocean
currents disturb methane-eating bacteria. “We
were able to show that strength and variability of ocean currents
control the prevalence of methanotrophic bacteria”, says Lea
Steinle from University of Basel and the lead author of the study,
“therefore, large bacteria populations cannot develop in a strong
current, which consequently leads to less methane consumption.”
50.
Arctic warming is amplified by phytoplankton under greenhouse warming
(Proceedings
of the National Academy of Sciences, 12 May 2015). Temperatures
in the Arctic are warming considerably faster than the global
average, largely because of diminishing sea ice. According to this
research, the biogeophysical effect of future phytoplankton changes
amplifies Arctic warming by 20%.
51.
Arctic
drilling was fast-tracked by the Obama administration during the
summer of 2012.
52.
Supertankers
are taking advantage of the slushy Arctic, demonstrating that
every catastrophe represents a business opportunity, as pointed out
by Professor of journalism Michael I. Niman and picked
up by Truth-out (ArtVoice, September 2013)
As
nearly as I can distinguish, only the latter two feedback processes
are reversible at a temporal scale relevant to our species. Once you
pull the tab on the can of beer, there’s no keeping the carbon
dioxide from bubbling up and out. These feedbacks are not additive,
they are multiplicative: They not only reinforce within a feedback,
the feedbacks also reinforce among themselves (as realized even
by Business Insider on 3 October 2013). Now that we’ve entered
the era of expensive oil, I can’t imagine we’ll voluntarily
terminate the process of drilling for oil and gas in the Arctic (or
anywhere else). Nor will we willingly forgo a few dollars by failing
to take advantage of the long-sought Northwest Passage or make any
attempt to slow economic growth.
Robin
Westenra provides an assessment
of these positive feedbacks at Seemorerocks on 14 July 2013. It’s
worth a look.
See
How Far We’ve Come
Never
mind that American naturalist George Perkins Marsh predicted
anthropogenic climate change as a result of burning fossil fuels in
1847. Never mind the warning
issued by filmmaker Frank Capra in 1958 or the one issued
by U.S. President Lyndon Baines Johnson in February 1965 or the
one issued by Austrian philosopher Ivan Illich in his 1973
article in Le Monde:
“the impact of industrially packaged quanta of energy on the social
environment tends to be degrading, exhausting, and enslaving, and
these effects come into play even before those which threaten the
pollution of the physical environment and the extinction of the
(human) race.” Never mind the warning and plug for geo-engineering
issued by U.S.
President Lyndon B. Johnson’s Science Advisory Committee in 1965:
“The climate changes that may be produced by the increased CO2
content could be deleterious from the point of view of human beings.
The possibilities of deliberately bringing about countervailing
climatic changes therefore need to be thoroughly explored.” Never
the mind the warning
from Walter Cronkite on the nightly news in 1980. Never mind the
1986
warning from NASA’s Robert Watson of “human misery in a few
decades” and eventual human extinction as a result of climate
change. Never mind that climate
risks have been underestimated for the last 20 Years, or that the
IPCC’s efforts have failed miserably, or that the IPCC uses a
faulty, conservative approach, as pointed
out in the September 2014 issue of American Meteorological Society
(David Wasdell’s scathing indictment of the vaunted Fifth
Assessment is archived here).
After all, climate scientist Kevin Anderson tells
us what I’ve known for years: politicians and the scientists
writing official reports on climate change are lying, and we have
less time than most people can imagine. (Consider the minor
example of the U.S. Environmental Protection Agency
“underestimating” by 100 to 1,000 times the methane release
associated with hydro-fracturing to extract natural gas, as reported
in the 14 April 2014 issue of the Proceedings of the National Academy
of Sciences.)
Never mind David Wasdell pointed
out in 2008 that we must have a period of negative radiative
forcing merely to end up with a stable, non-catastrophic climate
system. Never mind that even the Atlantic
is displaying
“five charts about climate change that should have you very, very
worried.” Never mind that atmospheric
carbon dioxide is affecting satellites. Never mind that even the
occasional economic analyst is telling
climate scientists to be persuasive, be brave, and be arrested.
Never mind that Peruvian
ice requiring 1,600 years to accumulate has melted in the last 25
years, according to a paper in the 4 April 2013 issue of Science.
And never mind that summer warming in the interior of large
continents in the northern hemisphere has outstripped model
predictions in racing to 6-7 C since the last Glacial Maximum,
according to a paper
that tallies temperature rise in China’s interior in the 15
May 2013 issue of the Proceedings of the National Academy of
Sciences.
And finally, never mind that the IPCC’s projections have been
revealed as too conservative time after time, including low-balling
the impact of emissions, as pointed out in the 9
March 2014 issue of Nature Climate Change.
On 24 March 2014, renowned climate scientist Michael
Mann commented on climate change as reported in the IPCC’s Fifth
Assessment: “It’s not far-off in the future and it’s not
exotic creatures — it’s us and now.” As the Fifth
Assessment admits, climate change has already left its mark “on
all continents and across the oceans.”
Never
mind all that: Future temperatures likely will be at the higher
end of the projected range because the forecasts are all too
conservative and also because climate
negotiations won’t avert catastrophe.
Through
late March 2013, global oceans have risen approximately ten
millimeters per year during the last two years. This rate of rise
is over three times the rate of sea level rise during the time of
satellite-based observations from 1993 to the present. Ocean
temperatures are rising, and have been impacting global fisheries for
four decades, according
to the 16 May 2013 issue of Nature.
According to the World
Meteorological Organization’s July 2014 report, the world is
nearly five times as prone to disaster as it was 40 years ago. The
number and economic cost of weather-related disasters has increased
during each of the last four decades.
Actually,
catastrophe is already here, although it’s not widely distributed
in the United States. Well, not yet, even though the continental
U.S. experienced its highest temperature ever in 2012, shattering the
1998 record by a full degree Fahrenheit. But the east
coast of North America experienced its hottest water temperatures all
the way to the bottom of the ocean. The epic
dust bowl of 2012 grew and grew and grew all summer long. As
pointed
out in the March 2004 issue of Geophysical
Research Letters,
disappearing sea ice is expectedly contributing to the drying of the
western United States (more definitive research on the topic appeared
in the December 2005 issue of Earth Interactions).
Equally expectedly, the drought
arrived 40 years early.
Even
James
Hansen and Makiko Sato are asking whether the loss of ice on
Greenland has gone exponential (while ridiculously calling for a
carbon tax to “fix” the “problem”), and the tentative
answer is not promising, based on very
recent data, including a nearly
five-fold increase in melting of Greenland’s ice since the 1990s
and a stunning melting
of 98 percent of Greenland’s ice surface between 8 and 15 July
2012. The explanation for this astonishing event comes from a
paper
published in the 10 June 2014 issue of the Proceedings of National
Academy of Sciences:
“[T]he same mechanism drove two widespread melt events that
occurred over 100 years apart, in 1889 and 2012. We found that black
carbon from forest fires and rising temperatures combined to cause
both of these events.” Further elucidation is provided in the 14
June 2014 issue of Journal of Geophysical Research: Atmospheres.
The mainstream media are finally taking notice, with the 18
July 2013 issue of Washington Post
reporting the ninth highest April snow cover in the northern
hemisphere giving way to the third lowest snow cover on record the
following month (relevant records date to 1967, and the article is
headlined, “Snow and Arctic sea ice extent plummet suddenly as
globe bakes”).
On
a particularly dire note for humanity, climate
change causes early death of 400,000 people each year
causes
early death of five million people each year. Adding to our
misery are interactions between various aspects of environmental
decay. For example, warming
in the Arctic is causing the release of toxic chemicals long trapped
in the region’s snow, ice, ocean and soil, according to
research
published in the 24 July 2011 issue of Nature Climate Change.
Greenhouse-gas
emissions keep rising, and keep setting records. According to 10 June
2013 report by the International Energy Agency, the horrific trend
continued
in 2012, when carbon dioxide emissions set a record for the fifth
consecutive year. The trend puts disaster in the cross-hairs, with
the ever-conservative International Energy Agency claiming we’re
headed for a temperature in excess of 5 C. The U.S. State
of the Climate in 2013,
published 17 July 2014 as a supplement to the July 2014 issue of the
Bulletin
of the American Meteorological Society,
concludes:
Ocean
surface continues to warm
Sea
levels reach a record high
Glaciers
retreat for the 24th consecutive year
Greenhouse
gases continue to climb
The
planet’s surface remains near its warmest
Warm
days are up, cool nights are down
Completely
contrary to the popular contrarian myth, global warming has
accelerated, with more overall global warming in the 15 years up to
March 2013 than the prior 15 years. Seventeen months later,
Science
finally catches up in their 22 August 2014 issue. This warming
has resulted in about 90% of overall global warming going into
heating the oceans, and the oceans have been warming dramatically,
according to a paper published in the March 2013 issue of Geophysical
Research Letters.
A paper in the 20
March 2014 issue of Environmental Research Letters points out
that surface
temperatures poorly measure global warming. Even Slate
magazine figured it out by 5 November 2013, and The
Guardian‘s
headline
from 13 November 2013 announces, “Global warming since 1997
more than twice as fast as previously estimated, new study shows.”
About 30% of the ocean warming over the past decade has occurred in
the deeper oceans below 700 meters, which is unprecedented over at
least the past half century. According to a paper
in the 1 November 2013 issue of Science,
the rate
of warming of the Pacific Ocean during the last 60 years is 15 times
faster than at any time during the last 10,000 years. By the end
of 2013, the
fourth-hottest year on record, the deep oceans were warming
particularly rapidly and NASA and NOAA reported no pause in the
long-term warming trend. “In
2013 ocean warming rapidly escalated, rising to a rate in excess of
12 Hiroshima bombs per second — over three times the recent trend.”
When the heat going into the ocean begins to influence land-surface
temperatures, “rapid warming is expected,” according
to a paper published 9 February 2014 in Nature Climate Change.
According to James Wight, writing
for Skeptical Science on 12 March 2014, “Earth is gaining heat
faster than ever.” ** Even land-surface records do not reveal a
hiatus in warming, as
reported in the 3 June 2015 issue of Science.
**
Coincident
with profound ocean warming, the death spiral of Arctic sea ice is
well under way, as shown in the video below. As reported
in the 22 February 2014 issue of Geophysical Research Letters,
sea-surface temperatures have increased 0.5 to 1.5 C during the
last decade. “The
seven lowest September sea ice extents in the satellite record have
all occurred in the past seven years.”
In
the category of myth busting comes recent research published
in the August 2013 issue of Proceedings of the National Academy of
Sciences.
Contrary to the notion that changing solar radiation is responsible
for rising global temperature, the
amount of solar radiation passing through Earth’s atmosphere and
reaching the ground globally peaked in the 1930s, substantially
decreased from the 1940s to the 1970s, and changed little after that.
Indeed, the current
solar activity cycle is the weakest in a century. In addition,
according
to a paper in the 22 December 2013 issue of Nature GeoScience,
climate change has not been strongly influenced by variations in heat
from the sun.
Global
loss of sea ice matches the trend in the Arctic. It’s down,
down, and down some more, with the five lowest values on record all
happening in the last seven years (through 2012). As reported
in a June 2013 issue of Science,
the Antarctic’s ice shelves are melting from below. When
interviewed for the associated
article in the 13 June 2013 issue of National
Geographic,
scientists expressed surprise at the rate of change. Color me
shocked. Three months later, the 13
September 2013 issue of Science contains another surprise for
mainstream scientists: The Pine
Island Glacier is melting from below as a result of warming seawater.
And four months after that dire assessment, the massive
glacier was melting irreversibly, according to a paper
in the 12 January 2014 issue of Nature Climate Change
(Robert Scribbler provides
an overview of the latter phenomenon).
Then
See Where We’re Going
The
climate situation is much worse than I’ve
led you to believe, and is accelerating
far more rapidly than accounted for by models. Even the U.S.
Centers for Disease Control and Prevention acknowledges,
in
a press release dated 6 June 2013, potentially lethal heat waves
on the near horizon. Piling on a month later, the World
Meteorological Organization pointed
out that Earth experienced unprecedented recorded climate
extremes during the decade 2001-2010, contributing to more than a
2,000 percent increase in heat-related deaths.
Although
climate change’s heat — not cold — is the real killer,
according to research published
in the December 2013 issue of the Journal of Economic Literature,
swings in temperature may be even more lethal than high temperatures.
Specifically, research published
in the 29 January 2014 issue of the Proceedings of the Royal Society
of London
indicates insects are particularly vulnerable to temperature swings.
Ice
sheet loss continues to increase at both poles, and warming of
the West Antarctic Ice Sheet is twice
the earlier scientific estimate. Arctic
ice at all-time low, half that of 1980, and the Arctic
lost enough sea ice to cover Canada and Alaska in 2012 alone. In
short, summer
ice in the Arctic is nearly gone. Furthermore, the Arctic
could well be free of ice by summer 2015, an event that last
occurred at least about
2.6 million years ago, approximately coincident with the
appearance of the genus Homo
on Earth. Among the consequences of declining Arctic ice is extremes
in cold weather in northern continents (thus illustrating why
“climate change” is a better term than “global warming”). In
a turn surprising only to mainstream climate scientists, Greenland
ice is melting rapidly.
The
Eemian interglacial period that began some 125,000 years ago is often
used as a model for contemporary climate change. However, as
pointed out in the 5 June 2012 issue of Geophysical Research Letters,
the Eemian differed in essential details from modern climatic
conditions. The
Eemian is a poor analog for contemporary climate change, notably
with respect to the rapid, ongoing disappearance of summer ice in the
Arctic.
Even
the conservative International
Energy Agency has thrown in the towel, concluding that “renewable”
energy is not keeping up with the old, dirty standard sources. As
a result, the International
Energy Agency report dated 17 April 2013 indicates the
development of low-carbon energy is progressing too slowly to limit
global warming.
The
Arctic isn’t Vegas — what happens in the Arctic doesn’t stay in
the Arctic — it’s the planet’s air conditioner. In fact, as
pointed
out 10 June 2013 by research scientist Charles Miller of NASA’s Jet
Propulsion Laboratory: “Climate change is already happening in
the Arctic, faster than its ecosystems can adapt. Looking at the
Arctic is like looking at the canary in the coal mine for the entire
Earth system.” In addition, “average
summer temperatures in the Canadian Arctic are now at the highest
they’ve been for approaching 50,000 years” (and perhaps
up to 120,000 years) according to a paper
published online 23 October 2013 in Geophysical
Research Letters.
Regional warming is accelerating because the Arctic is rapidly losing
ice, according
to a paper published in the October 2014 issue of The Open
Atmospheric Science Journal.
“Barrow, the most northerly community in Alaska, observed a warming
of 1.51°C for the time period of 1921-2012. This represents about
twice the global value, and is in agreement with the well-known polar
amplification. For the time period of 1979-2012, … a mean annual
temperature increase of 2.7°C is found, an accelerated increase of
warming over the prior decades. … The large amount of open water
off the northern coast of Alaska in autumn was accompanied by an
increase of the October temperature at Barrow by a very substantial
7.2°C over the 34 year time period.”
On
the topic of rapidity of change, a
paper in the August 2013 issue of Ecology Letters
points out that rates of projected climate change dramatically exceed
past rates of climatic niche evolution among vertebrate species. In
other words, vertebrates cannot evolve or adapt rapidly enough to
keep up with ongoing and projected changes in climate.
How
critical is Arctic ice? Whereas nearly 80 calories are required to
melt a gram of ice at 0 C, adding 80 calories to the same gram of
water at 0 C increases its temperature to 80 C. Anthropogenic
greenhouse-gas emissions add more than 2.5 trillion calories to
Earth’s surface every hour (ca. 3
watts per square meter, continuously).
Interactions
among feedbacks are particularly obvious in the Arctic. For example,
as reported in the 5 May 2014 issue of Geophysical
Research Letters,
“further reductions in seasonal ice cover in the future will result
in larger waves, which in turn provide a mechanism to break up sea
ice and accelerate ice retreat.”
Ocean
acidification associated with increased atmospheric carbon dioxide is
proceeding at an
unprecedented rate — the fastest
in 300 million years — leading to great
simplification of ecosystems, and capable
of triggering mass extinction by itself. Already, half
the Great Barrier Reef has died during the last three decades and
the entire
marine food web is threatened. As with many attributes, the
Arctic Ocean leads the way in acidification. Similarly to the
long lag in temperature relative to increase greenhouse gas
emissions, changes in ocean acidity lag far behind alterations in
atmospheric carbon dioxide, as reported
in the 21 February 2014 issue of Environmental Research Letters.
An
increasing number of scientists
agree that warming of 4 to 6 C causes a dead planet. And, they go on
to say, we’ll be there much sooner than most people realize.
Clive Hamilton concludes in his April 2013 book Earthmasters
that “without [atmospheric sulfates associated with industrial
activity] … Earth would be an extra 1.1 C warmer.” This estimate
matches that of James
Hansen and colleagues, who conclude 1.2 C cooling (plus or minus 0.2
C) as a result of atmospheric particulates (full paper in the 22
December 2011 issue of Atmospheric
Chemistry and Physics
is here.
Both estimates are conservative relative to a paper in the 27 May
2013 issue of Journal
of Geophysical Research: Atmospheres,
which reports
~1 C temperature rise resulting from a 35-80% reduction in
anthropogenic aerosols. In other words, collapse takes us
directly to 2 C within a matter of weeks. According to a paper
in the 24 November 2013 issue of Nature Climate Change,
warming of the planet will continue long after emissions cease.
Several other academic scientists have concluded, in the refereed
journal literature no less, that the 2 C mark — long a political
target, not a scientific target except among misinformed scientists —
is essentially impossible (for example, see the review
paper by Mark New and colleagues published in the 29 November
2010 issue of the Philosophical
Transactions of the Royal Society A
and the following line
from a paper in the 12 March 2014 edition of Review of European,
Comparative & International Environmental Law:
“countries are farther from meeting their targets and the global
community is farther from reaching the goal of limiting warming to
2°C above pre-industrial levels than emissions data suggest”). The
German Institute
for International and Security Affairs concluded 2 June 2013 that
a 2 C rise in global-average temperature is no
longer feasible (and Spiegel
agrees, finally, in their 7 June 2013 issue), while the
ultra-conservative International Energy Agency concludes
that, “coal will nearly overtake oil as the dominant energy
source by 2017 … without a major shift away from coal, average
global temperatures could rise by 6 degrees Celsius by 2050, leading
to devastating climate change.” At the 11:20 mark of this
video, climate scientist Paul Beckwith indicates Earth could warm
by 6 C within a decade (he drops the “could” in reinforcing the
point in a 25 November 2014
video, “Abrupt climate change is underway already”, and he
also concludes Earth could experience a 16 C temperature rise, albeit
from 5 C lower than today’s global-average temperature). Beckwith
is quoted by Dahr Jamail in the 13 January 2015 issue of Truthout:
“It is my view that our climate system is in early stages of abrupt
climate change that, unchecked, will lead to a temperature rise of 5
to 6 degrees Celsius within a decade or two.” If you think
Beckwith’s view is extreme, consider (1) a similar rise in
global-average temperature based
on a modeling analysis published in the December 2012 issue of
Journal of Climate,
(2) the
5 C rise in global-average temperature 55 million years ago during a
span of 13 years (reported
in the 1 October 2013 issue of Proceedings
of the National Academy of Sciences,
and questioned
by a January 2015 paper in Climate of the Past),
and also (3) the reconstruction of regional and global temperature
for the past 11,300 years published
in Science in March 2013. One result is shown in the figure
below.
It’s not merely scientists who know where we’re going. The Pentagon is bracing for public dissent over climate and energy shocks, as reported by Nafeez Ahmed in the 14 June 2013 issue of the Guardian. According to Ahmed’s article: “Top secret US National Security Agency (NSA) documents disclosed by the Guardian have shocked the world with revelations of a comprehensive US-based surveillance system with direct access to Facebook, Apple, Google, Microsoft and other tech giants. New Zealand court records suggest that data harvested by the NSA’s Prism system has been fed into the Five Eyes intelligence alliance whose members also include the UK, Canada, Australia and New Zealand.” In short, the “Pentagon knows that environmental, economic and other crises could provoke widespread public anger toward government and corporations” and is planning accordingly. Such “activity is linked to the last decade of US defence planning, which has been increasingly concerned by the risk of civil unrest at home triggered by catastrophic events linked to climate change, energy shocks or economic crisis — or all three.” In their 2014 Quadrennial Defense Review, the U.S. military concludes: “Climate change poses another significant challenge for the United States and the world at large. As greenhouse gas emissions increase, sea levels are rising, average global temperatures are increasing, and severe weather patterns are accelerating.” The global police state has arrived, and it’s accompanied by a subtle changes in Earth’s rotation that result from the melting of glaciers and ice sheets (i.e., climate change is causing Earth’s poles to shift).
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