A new synthesis published in Nature suggests that thawing Arctic permafrost will release greenhouse gases gradually, rather than in a sudden "bomb". The gradual rate of these natural emissions may give society more time to adapt to their effects, but they remain a challenge for climate mitigation .
PostedFeb 12, 2013
A recently published report summarizes past and present-day changes in the Earth’s cryosphere and describes the ongoing and potential effects of those changes.
PostedMay 2, 2012
Ecosystems & Biodiversity, Arctic
Data collected from long distance swims by polar bears suggest that they do not stop to rest during their journey.
PostedMar 27, 2012
Carbon Cycle, Arctic
A new study by USGS scientists and university researchers reveals that a substantial amount of organic carbon on Alaskan glaciers comes from atmospheric deposition of fossil fuel emissions.
PostedFeb 3, 2012
Observations, Carbon Cycle, Arctic, Cities & Infrastructure, Indicators
Last week, the Interior Department's US Geological Survey (USGS) released details about a landmark airborne survey of permafrost in the Yukon Flats of Alaska that yielded some of the most detailed, data-rich maps of permafrost ever generated.