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5/18/2009
Forecasts of polar bear populations and their likely responses to climate change have been strengthened by a new publication. USGS and the U.S. Forest service partially funded the study.
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5/13/2009
New research that relied on an armada of sophisticated floats shows that much of the water originating in the sea between Newfoundland and Greenland is diverted generally eastward by the time it flows as far south as Massachusetts.
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4/24/2009
Measurements made from the largest Greenland ice sample ever analyzed have confirmed that an unusual rise in atmospheric methane levels about 12,000 years ago was not the result of a catastrophic release of seafloor “hydrate deposits.”
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4/14/2009
If nations cut emissions of heat-trapping greenhouse gases by 70 percent this century, global temperatures would still rise, but the some aspects of climate change, including massive losses of Arctic sea ice and permafrost could be partly avoided.
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4/10/2009
An international consortium of scientists has successfully developed a series of autonomous observatories in Antarctica that provide critical year-round "space weather" data from the Earth's harshest environment for the first time.
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4/9/2009
Earth's ozone layer should eventually recover from the unintended destruction brought on by ozone-depleting chemicals in the 20th century. But new research suggests that greenhouse gases will make the layer quite different.
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4/8/2009
New NASA research suggests that much of the atmospheric warming observed in the Arctic since 1976 may be due to changes in tiny airborne particles called aerosols, emitted by both artificial and natural sources.
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4/6/2009
The latest data from NASA and the University of Colorado at Boulder's National Snow and Ice Data Center show the continuation of a decade-long trend of shrinking sea ice extent in the Arctic, including new evidence for thinning ice as well.
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4/6/2009
The genius of the Antarctic Treaty lies in its relevance today. It was written to meet the challenges of an earlier time, but it and its related instruments remain a key tool in our efforts to address an urgent threat of this time, climate change...
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4/4/2009
The Bering Sea is a wildly productive ecosystem, yielding millions of pounds of fish and crab each year. Is climate change affecting the Bering Sea? How? See daily pictures and read reports from researchers seeking answers to those questions.
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