Historic lake sediment dug up by University of Pittsburgh researchers reveals that oceanic influences on rainfall in Central America have varied over the last 2,000 years, highlighting the fluctuating influence the Atlantic ...
Earth Sciences
Feb 4, 2013
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(Phys.org)—A new study conducted by researchers at Iowa State University shows that the growth of sediment deposits at the bottom of Iowa's natural lakes is accelerating despite widespread soil conservation efforts.
Environment
Jan 14, 2013
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(Phys.org)—Fifty years of Athabasca oil sands development has left a legacy of contaminants in lake ecosystems and that contamination reaches further from the development areas than previously recognized, according to new ...
Environment
Jan 7, 2013
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(Phys.org)—Summers on the Norwegian archipelago of Svalbard are now warmer than at any other time in the last 1,800 years, including during medieval times when parts of the northern hemisphere were as hot as, or hotter, ...
Earth Sciences
Sep 28, 2012
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(Phys.org) -- Tree ring and oxygen isotope data from the U.S. Pacific Northwest do not provide the same information on past precipitation, but rather than causing a problem, the differing results are a good thing, according ...
Earth Sciences
Jul 2, 2012
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Researchers at the University of Pittsburgh have joined an international group of scientists to study past climate changes in the Arctic. Comprising geologists from Pitt's Department of Geology and Planetary Science, the ...
Earth Sciences
May 8, 2012
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Large, marine-calving glaciers have the ability not only to shrink rapidly in response to global warming, but to grow at a remarkable pace during periods of global cooling, according to University at Buffalo geologists working ...
Earth Sciences
Jul 14, 2011
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(PhysOrg.com) -- Abrupt average temperature changes of as much as 4 or 5 degrees Celsius over a few decades may have profoundly affected human civilization for cultures that occupied western Greenland over the past 5,000 ...
Earth Sciences
Jun 1, 2011
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Scientists from Queen's and Carleton universities head a national multidisciplinary research team that has uncovered startling new evidence of the destructive impact of global climate change on North America's largest Arctic ...
Environment
May 16, 2011
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How severe can climate change become in a warming world? Worse than anything we've seen in written history, according to results of a study appearing this week in the journal Science.
Earth Sciences
Feb 24, 2011
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