A
nice play-on-words in the headline. This is the only (printable)
response posssible to the Obama speech.
We've already got dangerous climate change.
Obama's
fracked-up climate strategy will guarantee global warming disaster
Fatally
flawed energy policies and inadequate emissions pledges cannot
prevent dangerous climate change
Nafeez
Ahmed
25
June, 2013!
President
Obama's much-anticipated speech at Georgetown University unveiling
America's new climate
change
strategy offers welcome
re-affirmation
of the US government's recognition of global warming dangers. Plans
to regulate coal plants, beef up defences against flooding and sea
level rise, increase energy efficiency for homes and businesses, and
fast track permits for renewable energy on public lands, are critical
steps forward.
But the new climate strategy remains fatally compromised by Obama's unflinching commitment to the maximum possible exploitation of fossil fuels - a contradiction that has set the world on course to trigger unmitigated catastrophe in coming decades.
Central
to the plan is Obama's reiteration of his commitment to cutting US
greenhouse gas emissions 17% from 2005 levels by 2020. But this
target is too
little, too late
- amounting to only a
4% cut in emissions
compared with 1990 levels.
Even
before this target was enshrined into US law, scientists
warned
that the pledge "will not be enough to head off dangerous
climate change" as global temperatures would still breach the 2C
target accepted by governments as the safe limit for global warming.
"The
pledges on the table will not halt emissions growth before 2040...
Instead, global emissions are likely to be nearly double 1990 levels
by 2040 based on present pledges."
A
new
study by Climate Action Tracker
(CAT) out this month concludes that full implementation of the
pledges would still lead to a 3.3C rise by 2100. Based on actual
climate policies so far, however, CAT warned that governments are
"less likely than ever to deliver on the Copenhagen pledges."
If this continues, temperatures could exceed 4C by the end of the
century, triggering positive feedbacks leading to further warming.
In
the mix of Obama's plan are nuclear
power
and 'clean coal' technologies, all of which have huge questions marks
over their ability to mitigate greenhouse gas emissions. And though
Obama promised to only ratify the Keystone
XL pipeline
if its "net effect" does not "significantly
exacerbate" carbon pollution (which it already
does),
exploiting America's domestic shale oil and gas reserves through
fracking remains an integral part of the new plan.
The
defunct "net effect" argument has already been used to
legitimise shale gas, officially touted as a clean bridge fuel. But
shale gas is far from clean. In 2011, the
first comprehensive analysis of emissions from shale gas
in the journal Climatic Change found that:
"The
footprint for shale gas is greater than that for conventional gas or
oil when viewed on any time horizon, but particularly so over 20
years. Compared to coal, the footprint of shale gas is at least 20%
greater and perhaps more than twice as great on the 20-year horizon
and is comparable when compared over 100 years."
"...
for most uses, the GHG footprint of shale gas is greater than that of
other fossil fuels on time scales of up to 100 years. When used to
generate electricity, the shale-gas footprint is still significantly
greater than that of coal at decadal time scales but is less at the
century scale... We reiterate our conclusion... that shale gas is not
a suitable bridge fuel for the 21st Century."
What
about nuclear power? A 2008
study
in the International Journal of Nuclear Governance, Economy and
Ecology pointed out that the construction, mining, milling,
transporting, refining, enrichment, waste reprocessing/disposal,
fabrication, operation and decommissioning processes of nuclear power
all release fossil fuel emissions. Also, nuclear power is not
efficient enough to replace oil, gas and coal. To do so nuclear
production would need to increase by 10.5 per cent every year from
2010 to 2050 - an "unsustainable prospect" requiring a
"cannibalistic effect", whereby nuclear energy itself must
be used to supply the energy for future nuclear power plants.
Study
author Dr. Joshua Pearce further
argued
last year that unless nuclear power adopts "improved technology
and efficiency through the entire life cycle to prevent energy
cannibalism during rapid growth", the industry could "face
obsolescence" compared to renewables. And a new
report
by the Berlin-based Energy Watch Group warns of a "high risk of
a uranium supply gap for nuclear reactors before 2020."
What
about carbon
capture and storage
(CCS), where we burn fossil fuels, but capture the carbon dioxide and
'sequester' it back underground? Some suggest we could capture half
the world's emitted carbon
in this way by the 2040s.
Unfortunately, it sounds too good to be
true - and it is. As environmental scientist Vaclav
Smil
calculates, to sequester just a fifth of current CO2 emissions:
"...
we would have to create an entirely new worldwide
absorption-gathering-compression-transportation- storage industry
whose annual throughput would have to be about 70 percent larger than
the annual volume now handled by the global crude oil industry whose
immense infrastructure of wells, pipelines, compressor stations and
storages took generations to build."
The
problem here is simple. Obama's new climate plan, however well
intentioned (or not), is tied to fatally flawed energy politics. The
world needs a climate strategy based on science - not wishful
thinking inspired by the fossil fuel and nuclear lobbies.
Dr
Nafeez Ahmed
is executive director of the Institute
for Policy Research & Development
and author of A
User's Guide to the Crisis of Civilisation: And How to Save It
among other books. Follow him on Twitter @nafeezahmed
No comments:
Post a Comment
Note: only a member of this blog may post a comment.