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Global Ice Age Climate Patterns Influenced by Bering Strait

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In a vivid example of how a small geographic feature may have far-reaching impacts on climate, new research shows that water levels in the Bering Strait—which separates the US and Russia by only 90 kilometers (56 miles)—helped drive global climate patterns during ice age episodes dating back more than 100,000 years.

Climate 199
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Scientists call for careful use of time scales, reference dates and statistical approaches in analyzing climate change trends to avoid distortion and hampering of response

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Interpolated surfaces showing the change in mean annual temperature across Alaska for three different time series: 1949?2009, Is it warming?”, “Is it cooling?”), and these outlets are often the major information source for the general public and policy makers on the issue of climate. 2009, 1949?1976, 1976, and 1977?2009. Is it warming?”

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US Global Change Research Program Issues Report on Impacts of Climate Change in US; Details Point to Potential Value of Early, Aggressive Action

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Widespread climate-related impacts are occurring now in the US and are expected to increase. A product of the interagency US Global Change Research Program, the 190-page report was commissioned in 2007 and completed this spring. It is clear that climate change is happening now. Source: USGCRP. Click to enlarge.

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Expansion of sugarcane crop in Brazil to areas previously occupied by crops or pastureland leads to local cooling

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A new study led by Carnegie Institution’s Department of Global Ecology has found that the expansion of sugarcane crop in Brazil in areas previously occupied by other Brazilian crops cools the local climate. The study is published in the second issue of Nature Climate Change. Nature Climate Change doi: 10.1038/nclimate1067.

Brazil 218
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Study Concludes Peak Coal Will Occur Close to 2011

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A multi-Hubbert analysis of coal production by Tadeusz Patzek at The University of Texas at Austin and Gregory Croft at the University of California, Berkeley concludes that the global peak of coal production from existing coalfields will occur close to the year 2011. Gt C (15 Gt CO 2 ) per year, according to the study.

Coal 357
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DOE to fund 14 research projects on deepwater and Arctic methane hydrates; potential future energy supply

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The selected projects build on the completion of a successful test earlier this year that was able to safely extract a steady flow of natural gas from methane hydrates on the North Slope of Alaska. University of California at San Diego. University of California at San Diego. University of Mississippi. Earlier post.).

Future 225
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Study Finds East Siberian Arctic Shelf Showing Instability and Widespread Venting of the GHG Methane; Releases May Be Much Larger and Faster Than Anticipated

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A section of the East Siberian Arctic Shelf (ESAS) seafloor that holds vast stores of frozen methane (CH 4 ) is showing signs of instability and widespread venting of the gas, according to the findings of an international research team led by University of Alaska Fairbanks scientists Natalia Shakhova and Igor Semiletov. Shakhova et al.

Tundra 223