Tag Archives: National Science Foundation

U.S. Rivers and Streams Saturated With Carbon


Significant amount of carbon in land is leaking into streams and rivers, then to the atmosphere October 16, 2011 Rivers and streams in the United States are releasing substantially more carbon dioxide into the atmosphere than previously thought. This according … Continue reading

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Scientific challenges in the Arctic: Open water


As the ice melts, fresh obstacles confront Arctic researchers. Published online 12 October 2011 | Nature 478, 174-177 (2011) | doi:10.1038/478174a Last month, US researchers took a 4,000-tonne gamble when they steered the Marcus G. Langseth through the Bering Strait and … Continue reading

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Deep oceans can mask global warming for decade-long periods


BOULDER — The planet’s deep oceans at times may absorb enough heat to flatten the rate of global warming for periods of as long as a decade even in the midst of longer-term warming, according to a new analysis led … Continue reading

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Engineering researchers discover source for generating ‘green’ electricity


University of Minnesota engineering researchers in the College of Science and Engineering have recently discovered a new alloy material that converts heat directly into electricity. This revolutionary energy conversion method is in the early stages of development, but it could … Continue reading

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Coping with climate change


Can we predict which species will be able to move far or fast enough to track changing climate? Durham, NC — As global temperatures rise, suitable sites for many plants and animals are shifting to cooler and higher ground. Can … Continue reading

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Ancient fossils hold clues for predicting future climate change, scientists report


By studying fossilized mollusks from some 3.5 million years ago, UCLA geoscientists and colleagues have been able to construct an ancient climate record that holds clues about the long-term effects of Earth’s current levels of atmospheric carbon dioxide, a key contributor to … Continue reading

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How Severe Can Climate Change Become?


Extreme megadrought in Afro-Asian region likely had consequences for Paleolithic cultures 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 … Continue reading

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New melt record for Greenland ice sheet


2011-01-21 City College of New York CCNY’s Marco Tedesco says ‘exceptional’ season stretched up to 50 days longer than average New research shows that 2010 set new records for the melting of the Greenland Ice Sheet, expected to be a … Continue reading

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Shrinking snow and ice cover intensify global warming


2011-01-18 Nature Geoscience, U. Michigan, Oregon State U. Radiative forcing and albedo feedback from the Northern Hemisphere cryosphere between 1979 and 2008 ANN ARBOR, Mich.—The decreases in Earth’s snow and ice cover over the past 30 years have exacerbated global … Continue reading

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Earth’s Hot Past: Prologue to Future Climate?


Study of Earth’s deep past leads to look into the future Earth may someday return to a hotter climate when the Antarctic ice sheet didn’t exist. Credit and Larger Version January 13, 2011 View a video interview with Jeff Kiehl … Continue reading

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Study estimates land available for biofuel crops


2011-01-10 University of Illinois CHAMPAIGN, Ill. — Using detailed land analysis, Illinois researchers have found that biofuel crops cultivated on available land could produce up to half of the world’s current fuel consumption – without affecting food crops or pastureland. … Continue reading

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