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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. It is clear that climate change is happening now. The observed climate changes we report are not opinions to be debated, they are facts to be dealt with.This is a dynamic process. Source: USGCRP. Click to enlarge.

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UAF installs ocean acidification buoy in Alaska waters; first such in high-latitude coastal sea

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A new set of buoys in Alaska waters will help scientists understand how climate change may be affecting the pH level of northern seas. University of Alaska Fairbanks (UAF) researchers placed the first buoy last month. As carbon dioxide levels rise in the atmosphere, the ocean absorbs more, making seawater more acidic.

Alaska 218
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US DOE to award up to $20M for research on methane hydrates

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Recent discoveries of methane hydrate in arctic and deep-water marine environments have highlighted the need for a better understanding of this substance as a natural storehouse of carbon and a potential energy resource. DOE-Alaska cooperation on unconventional resources. Response of Gas Hydrate Reservoirs to Induced Change.

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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.

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EIA releases report on CO2 emissions by state; California led in 2010 with transportation-sector emissions

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The US Energy Information Administration (EIA) has released a new report, State-Level Energy-Related Carbon Dioxide Emissions, 2000-2010. The report shows a significant variation of energy-related carbon dioxide emissions across states on both an absolute and a per capita basis. tonnes/person) and Alaska (54.6 tonnes/person).

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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
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Study Concludes Peak Coal Will Occur Close to 2011

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The HHV of global production is likely to peak in 2011 at 160 EJ/y, and the peak carbon emissions from coal burning will also peak in 2011 at 4.0 Thus, current focus on carbon capture and geological sequestration may be misplaced. Gt C (15 Gt CO 2 ) per year, according to the study. 50% are urgently needed. —Patzek and Croft.

Coal 357