Updated. It seems that we are now up to 38 self-reinforcing feeback loops now.
Climate-change summary and update
Guy McPherson
11
June, 2014
Updated
frequently, and most recently 11 June 2014. ** Latest additions are
flagged with two asterisks on each side. **
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.
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. They’re mired in the dank Swamp
of Nothingness. As Hallor 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. As we’ve known for
years, scientists
almost invariably underplay climate impacts.
And in some cases, scientists
are aggressively muzzled by their governments.
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 (they 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” (and see an overview
of this phenomenon from 21 May 2014).
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.
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.
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).
Aspointed
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.
Finally, “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,”
judging from research published in
the 25 February 2014 issue of Nature
Communications.
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 stupidity,
the public correctly interprets geo-engineering in the same light as
the scientists, and contrary to the techno-optimists.
The
IPCC operates with a very conservative process and produces very
conservative reports. 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).
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.” Truthout
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.”
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.”
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 3.5 C 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. 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 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.” 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.
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,
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 level 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.
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 level 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 fifth-warming
year on record and the second-warmest year without an El Nino.
Another El Niño is on the way, as pointed
out by Robert Scribbler on 6 March 2014:
“Should the predicted El Nino emerge and be as strong as average
model values indicate, global surface temperatures could rise by
between .05 and .15 degrees Celsius …. This would be a substantial
jump for a single year, resulting in yet one more large shift toward
an ever more extreme climate.” Indeed, the upper end of the
projected range takes us to 1 C warmer than baseline.
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 ten times since its publication.
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.
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.
Tipped
Over
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 expected by the United Kingdom Parliament,
whichpoints
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.
Predicting
Near-Term Human Extinction
If
you think we’ll adapt, think again. 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.
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. 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 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-scale
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
- Hadley Centre for Meteorological Research (October 2009): 4 C by 2060
- 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
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).
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 Truthout 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.
The
40-year has been evident since at least 1938, when Guy Callendar
pointed out influence of rising carbon dioxide on temperature in a
paper in the Quarterly
Journal of the Royal Meteorological Society.
The hand-drawn figure from the paper shown below clearly illustrates
a rise in global-average temperature beginning about 1915, roughly 40
years 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.
Broadening the Perspective
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). 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.
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.
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. 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.”
Self-Reinforcing
Feedback Loops
1. Methane hydrates are bubbling out the Arctic Ocean (Science, 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. 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 appears 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). 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.” Not surprisingly, the clathrate gun began firing in 2007, the same year the extent of Arctic sea ice reached a tipping point.
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.
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.”
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. “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 relative to observations, as reported in the 10 March 2014 issue of Geophysical Research Letters.
3. Siberian methane vents have increased in size from less than a meter across in the summer of 2010 to about a kilometer across in 2011 (Tellus, February 2011). According to a paper in the 12 April 2013 issue of Science, a major methane release is almost inevitable, 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.
4. Peat in the world’s boreal forests is decomposing at an astonishing rate (Nature Communications, November 2011)
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)
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. The rate of loss during the period 2010-2013 was double that during the period 2005-2010,according to a paper scheduled for publication in Geophysical Research Letters.Further confirmation of large methane releases is revealed by noctilucent clouds over the southern hemisphere from 21 November 2013 to 6 December 2013.
8. Russian forest and bog fires are growing (NASA, 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.
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
13. 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 theNew 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.
14. 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.
15. 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.
16. 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). 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.
17. 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.
18. 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). 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. As one result, boreal peat dries and catches fire like a coal seam. 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)
19. Arctic ice is growing darker, hence less reflective (Nature Climate Change, August 2013)
20. Extreme weather events drive climate change, as reported in the 15 August 2013 issue of Nature (Nature, August 2013)
21. 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 ofNature 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.
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.
22. 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.
23. 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.
24. Rising ocean temperatures will upset natural cycles of carbon dioxide, nitrogen and phosphorus, hence reducing plankton (Nature Climate Change, September 2013)
25. 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)
26. 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.
27. Mixing of the jet stream is a catalyst, too. High methane releases follow fracturing of the jet stream, accounting for past global-average temperature rises up to 16 C in a decade or two (Paul Beckwith via video on 19 December 2013).
28. 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)
29. “Thawing permafrost promotes microbial degradation of cryo-sequestered and new carbon leading to the biogenic production of methane” (Nature Communications, February 2014)
30. Overthe tropical West Pacific there is a natural, invisible holeextending over several thousand kilometers in a layer that preventstransport of most of the natural and man-made substances into thestratosphere 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. Globalmethane 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)
31. Deep ocean currents apparently are slowing. According to one of the authors of the paper, “ .” 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)
32. Increased atmospheric carbon dioxide causes soil microbes to produce more carbon dioxide (Science, 2 May 2014)
33. 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)
** 34. 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
**
35. Arctic drilling was fast-tracked by the Obama administration during the summer of 2012
36. 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 Truthout (ArtVoice, September 2013)
37. Asian pollution resulting from economic growth contribute to increased intensity of storms in western North America (Proceedings of the National Academy of Sciences, April 2014)
** 38. Two chlorofluorocarbons (CFCs) and one hydrochlorofluorocarbon (HCFC) have been found in the atmosphere. All three greenhouse gases are human-made. (Environment, June 2014) **
As
nearly as I can distinguish, only the latter four 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 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
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 (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.
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 ofGeophysical
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.” ** 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 toresearch
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.
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.
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.”
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 some three million years ago, before the
genus Homo walked
the planet. 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 (IEA) has thrown in the towel, concluding that
“renewable” energy is not keeping up with the old, dirty standard
sources.
As a result, the IEA
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.
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.
Earth-system scientist Clive Hamilton concludes in his April 2013
book Earthmasters that
“without [atmospheric sulphates associated with industrial
activity] … Earth would be an extra 1.1 C warmer.” 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 is essentially
impossible (for example, see the review
paper by Mark New and in the 29 November 2010 issue of the Philosophical
Transactions of the Royal Society A).
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. If you think his view is extreme, consider (1) 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 also (2) 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 theGuardian. 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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