A new EPA report brings together data from multiple public and peer-reviewed datasets to show observed changes over time in 26 indicators of climate change – including measures of greenhouse gases , high and low temperatures, heavy rainfall, snowfall, pollen season and sea level rise.
PostedJun 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.
PostedApr 4, 2012
Last month, USGCRP's Carbon Cycle Science Program facilitated a series of briefings for the release of the 2011 U.S. Carbon Cycle Science Plan, a document that will serve to guide carbon cycle research in the United States over the next decade.
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.
PostedMar 13, 2012
Oceans, Ecosystems & Biodiversity, Carbon Cycle
A new study concludes that the current rate of ocean acidification is higher than at any time in at least the last 300 million years and attributes this ecosystem -threatening change to the huge quantities of carbon dioxide being released into the atmosphere from fossil-fuel burning and deforestation.
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.
PostedJan 3, 2012
The carbon cycle science community in the United States has just finished its planning process for carbon cycle research for the upcoming decade. This reassessment of the U.S. carbon cycle science priorities was initiated by the U.S. Carbon Cycle Interagency Working Group (CCIWG) and Carbon Cycle Science Steering Group (CCSSG) in 2008.
PostedMay 19, 2010
Physical Climate, Observations, Modeling, Mitigation, Carbon Cycle, Energy, Adaptation
As part of its most comprehensive study of climate change to date, the National Research Council today issued three reports emphasizing why the U.S. should act now to reduce greenhouse gas emissions and develop a national strategy to adapt to the inevitable impacts of climate change.