(PhysOrg.com) -- Analyzing the isotope ratios of ancient raindrops preserved in soils and lake sediments, Stanford researchers have shown that a wave of mountain building began in British Columbia, Canada about 49 million ...
Earth Sciences
Dec 17, 2010
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Wildfires may seem like a fixed and unchanging force of nature. They're not. Over long time scales, research has shown that both the climate and humans have a profound effect on wildfire activity around the globe. Now new ...
Environment
Oct 28, 2010
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Much organically bound carbon is deposited on inland lake bottoms. A portion remains in the sediment, sometimes for thousands of years, while the rest is largely broken down to carbon dioxide and methane, which are released ...
Earth Sciences
Jul 21, 2010
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An analysis of sediment cores indicates that biological and chemical changes occurring at a remote Arctic lake are unprecedented over the past 200,000 years and likely are the result of human-caused climate change, according ...
Earth Sciences
Oct 19, 2009
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(PhysOrg.com) -- Released today, UC Davis' annual Lake Tahoe health report describes a spreading Asian clam population that could put sharp shells and rotting algae on the spectacular mountain lake's popular beaches, possibly ...
Environment
Aug 18, 2009
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(PhysOrg.com) -- Suspending a life in time is a theme that normally finds itself in the pages of science fiction, but now such ideas have become a reality in the annals of science.
Evolution
Jul 17, 2009
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(PhysOrg.com) -- A team of scientists from the United States, Germany, Russia and Austria has just returned from a six-month drilling expedition to a frozen lake in Siberia: Lake El'gygytgyn, "Lake E" for short.
Earth Sciences
May 28, 2009
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(PhysOrg.com) -- The wind barreled across the ice at Daily Lake as Montana State University paleoecologist Cathy Whitlock and three students used all their strength to pull a metal pipe out of the mucky lake bottom. With ...
Earth Sciences
Feb 27, 2009
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Over-fertilized waterways, impoverished soils: the use of phosphorous in agriculture is creating a dilemma, and it all began thousands of years ago. This has been verified by an analysis published in Global and Planetary ...
Earth Sciences
Oct 27, 2023
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Research shows that over 4,800 years in the Northern Rockies during wet periods and dry periods, subalpine forests consistently recovered from wildfires, growing back vegetation and leaving evidence of their resilience in ...
Earth Sciences
Oct 17, 2023
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