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2011 Experts: HIGH RISK OF PERMAFROST THAW
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For all humanity and all life there exists an Arctic rapid climate change planetary emergency - requiring a rapid drastic global emergency response to avert global climate planetary catastrophe.
For NH (and world) food production and for the life supporting biosphere, Arctic snow, sea ice and carbon must be at least stabilized. This now requires regional Arctic artifical cooling.
Nature 2012 D. G. MacMartin, Management of trade-offs in geoengineering through optimal choice of non-uniform radiative forcing
This Arctic emergency situation is comprehensively explained in this US petition As Goes the Arctic So Goes the Planet.
The March 2014 report What We Know by the American Association for the Advancement of Science (AAAS largest world science organization) makes the extreme risk from the Arctic clear. Here is what the AAS said regarding the Arctic situation.
In 2007 the UNEP GEO 4 assessment concluded that global climate change was a 'threat to the very survival of humanity'. In 2009 the UNEP Year Book warned that 'There is alarming evidence that important tipping points, leading to irreversible changes in major Earth systems and ecosystems, may already have been reached or passed. [...] 'The potential for runaway greenhouse warming is real and has never been more clear'.
The 2003 NASA Arctic warming research still applies today. Arctic temperature and sea ice cover may be a harbinger of global climate changes to come, according to a recent NASA study. It has been determined that the rate of warming in the Arctic has acclerated - from 1981 to 2001 it is eight times larger than the rate of Arctic warming over the last 100 years and there was a furher acceleration after 2001. The biggest temperature increase was over North America. The same trend has continued over the past decade.
1. Impact to Northern hemisphere food productivity- loss of Arctic albedo cooling
2. Arctic methane feedback 'runaway' warming- loss of Arctic albedo cooling
3. Commitment - already locked in warming- much higher that today's
Three extraordinary research projects published 2012-2013, one on a Siberian crater lake, one on Arctic permafrost and one on Arctic methane hydrate, has changed the situation of the Arctic under global warming dramatically and reinforces the Arctic warming planetary emergency.
A Siberian crater lake shows the region was 8C warmer (atmospheric CO2 was 320-400ppm) than it is now. Today's CO2 is 400 ppm. The Arctic is far more sensitive to warming than imagined Siberian Times May 2013
In 2008 and again in 2012 James Hansen made a public statement that a state of planetary emergency existed because the record loss of Summer Arctic Sea Ice had crossed the Summer ice free tipping point.
For years scientists have been warning that the loss of the Arctic summer sea ice albedo would be a very strong amplifying feedback boosting Arctic and global warming. Now we realize the Arctic albedo cooling is also due to the vast expanse and Spring-Summer NH snow and the Greenland ice sheet surface, that are both losing their cooling albedo effect due to rapidly increasing melting.
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