6

Thawing Arctic permafrost will accelerate warming

University of Victoria researchers’ warning


 

NASA Goddard Photo and Video

Today’s Cool Canuck Research is actually about warming and it’s really not very cool at all.

University of Victoria students Andrew MacDougall and Chris Avis, along with climate scientist Andrew Weaver, say their model shows that thawing permafrost in the Arctic will accelerate the rate of global warming. Their study is in Nature Geoscience Letters. The University of Victoria explains:

Permafrost is permanently frozen soil, sediment or rock. It’s estimated that about 18.8 million sq km of northern soils hold about 1,700 billion tonnes of organic carbon, or frozen compost—the remains of plants and animals that have accumulated over thousands of years. That’s about four times more than all the carbon emitted by human activity in modern times, and twice as much than is currently in the atmosphere.

The new study predicts that by the end of this century, permafrost could release between 68 and 508 billion additional tonnes of carbon into the atmosphere, raising global temperatures by an average of 0.4 to 0.8°C. When combined with observed warming since pre-industrial times and committed warming in response to existing greenhouse gas levels, this suggests the planet is heading toward a 1.8 to 2.3°C rise in temperature—even if we start reducing emissions immediately.

“Our analysis shows that limiting global warming to less than 2°C—as identified in the 2009 Copenhagen Accord—is less and less likely,”  says [researcher] MacDougall. “It’s clear that if we want to avoid the more dire effects of climate change, we need to start reducing our emissions immediately and aggressively.”


 

Thawing Arctic permafrost will accelerate warming

  1. It’s ok to clean up our atmoshere, but has anybody thought about global dimming and the revese effect that will have?

  2. its too late.

    adapt for the changes

  3. More junk science from the U Vic climate propaganda pseudo scientist Weaver.

    • Andrew J. Weaver is a climate modeller in the School of Earth and Ocean Sciences at the University of Victoria, British Columbia,[1] and a lead author of a chapter on Global Climate Projections in the Intergovernmental Panel on Climate Change’s report Climate Change 2007: The Physical Science Basis.[2] He is also a lead author for Chapter 12 of the IPCC fifth assessment report.[3] Andrew Weaver has authored or co-authored over 130 peer-reviewed journal articles according to the ISI Web of Knowledge.[4] He has also published a popular science book on climate change: Keeping Our Cool: Canada in a Warming World (Viking Canada, 2008. ISBN 978-0-670-06800-5).

      Weaver has been named a Guggenheim Fellow, a Fellow of the American Meteorological Society, a Fellow of the Royal Society of Canada, a member of the Order of British Columbia and one of the top 20 scientists in Canada under the age of 40, and is listed as an opinion blogger for the Vancouver Sun. [5]

      Weaver was featured in the Peter Mettler film Petropolis (film).

      On April 22, 2010 he issued a complaint in the Supreme Court of British Columbia in Canada against the National Post newspaper for falsely reporting that he signed off on manipulated climate change studies.[6]

      In 2011, Weaver responded to accusations of falsifying data on climate change by suing Tim Ball, an outspoken skeptic of the issue, for defamation. The lawsuit accuses Ball of saying that Weaver “cheated the Canadian taxpayer by accepting public funding for climate science research although he has little or no knowledge about climate science and is incapable of conducting useful research,” and that he “bribed university students with research funds so they would participate in useless computer modeling studies…” [7]

      The article was removed from the Canada Free Press site, which published a long retraction and apology to Weaver.

  4. The United States will be one huge desert, like Saudi Arabia – except without the oil. There will be mass famiine there. Canada will be nice and tropical and prospering from the oils sands. Cool.

  5. There will be mass famiine there. Canada will be nice and tropical and prospering from the oils sand

Sign in to comment.