Using this graphic and referring to it is encouraged, and please use it in presentations, web pages, newspapers, blogs and reports.
For any form of publication, please include the link to this page and give the cartographer/designer credit (in this case Philippe Rekacewicz, UNEP/GRID-Arendal)
Romanovsky, in Impacts of global climate change in the Arctic regions, IASC, Tromsø, April 1999
Uploaded on Wednesday 22 Feb 2012
Change in permafrost temperature in Fairbanks (Alaska)
Philippe Rekacewicz, UNEP/GRID-Arendal
With a doubling of atmospheric CO2, it is likely that there will be increases in the thickness of the active layer permafrost and the disappearance of most of the ice-rich discontinous permafrost over a century-long time span.
This figure provides a good example of changes already observed in Alaska. Widespread loss of discontinous permafrost will trigger erosion or subsidence of ice-rich landscapes, change hydrologic processes, and release CO2 and methane to the atmosphere.
Changes in the cryosphere will reduce slope stability and increase incidence of natural hazards for people, structures and communication links. Buildings, roads, pipelines and communication links will be threatened.