(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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During peak migration days in the early 1900s, tens of thousands of canvasback ducks could be seen floating and diving on Minnesota's Lake Christina. Since midcentury, changes to the lake have diminished this grand, iconic ...
Environment
Mar 27, 2012
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Simon Fraser University statistician Rick Routledge will share his knowledge of what layers of charcoal in lake-bottom sediment can tell us about an area's forest fire history, at the world's largest science fair in Vancouver.
Environment
Feb 17, 2012
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The climate in Central Asia, currently a semiarid region, has varied over the past 500,000 years. An accurate record of the past climate can help scientists understand current climate and better predict how the climate may ...
Earth Sciences
Jan 31, 2012
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Next week a British engineering team heads off to Antarctica for the first stage of an ambitious scientific mission to collect water and sediment samples from a lake buried beneath three kilometres of solid ice. This extraordinary ...
Earth Sciences
Oct 10, 2011
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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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