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.
Dec 9, 2013
Oceans, Physical Climate, Modeling, Arctic, Extreme Events
US CLIVAR (Climate Variability and Predictability Program) has released a new Science Plan outlining its research goals and strategies for the next 15 years.
Jun 12, 2013
Physical Climate, Modeling, Carbon Cycle, Arctic
NASA's Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE) is probing deep into the frozen lands above the Arctic Circle in Alaska to measure emissions of the greenhouse gases carbon dioxide and methane from thawing permafrost signals that may hold a key to Earth's climate future.
Feb 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.
Jul 25, 2012
Observations, International, Arctic
For several days this month, Greenland's surface ice cover melted over a larger area than at any time in more than 30 years of satellite observations.
Jun 1, 2012
Physical Climate, Observations, Carbon Cycle, Arctic
The concentration of carbon dioxide in the atmosphere of Barrow, Alaska, reached 400 parts per million (ppm) this spring, according to NOAA measurements, the first time a monthly average measurement for the greenhouse gas attained the 400 ppm mark in a remote location.
May 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.
Mar 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.
Mar 19, 2012
Oceans, Observations, Arctic
A new NASA study shows that the average thickness of sea ice in the Arctic is on the decline.
Feb 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.