Climate
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Planetary Science
Worldwide slowdown in plant carbon uptake
A decade of droughts has stifled the increasing growth of terrestrial vegetation.
By Sid Perkins -
Climate
EPA rejects climate-change deniers’ petitions
A number of people challenge that climate change is real, that it's due to greenhouse gases released by human activities and that it's a threat to human health and the environment. On July 29, the Environmental Protection Agency formally rejected those claims as it turned down 10 petitions asking the Obama administration to reconsider EPA’s “endangerment finding.”
By Janet Raloff -
Climate
New carbon data should produce better climate forecasts
BLOG: More refined measurements for carbon dioxide input by plants and carbon dioxide released during respiration will help models, Science News editor in chief Tom Siegfried reports from the Euroscience Open Forum 2010 in Turin, Italy.
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Climate
Methane releases in arctic seas could wreak devastation
Warming climate could lead to dead zones, acidification and shifts at the base of the ocean’s food chain.
By Sid Perkins -
Animals
Climate change may favor couch-potato elk
With drought and rising temperatures in Wyoming, migratory animals suffer while stay-at-home members of the same herd thrive
By Susan Milius -
Climate
With warming, some commercial fish may boom and bust
Higher temps in Arctic waters might be good for some species but not for others, new research suggests.
By Sid Perkins -
Climate
Oceans warmed in recent decades
Measurements show a trend of rising temperatures along with a leveling off since 2003.
By Sid Perkins -
Chemistry
EPA issues greenhouse-gas rules for new factories and more
EPA released new rules on greenhouse-gas emissions for new power plants, factories and oil refineries — any big new facility, really that emits huge amounts of carbon dioxide, methane, nitrous oxide, or any of several other classes of chemicals. Existing facilities can continue to spew greenhouse gases at current levels.
By Janet Raloff -
Climate
Alaskan peatlands expanded rapidly as ice age waned
The rapid growth of Alaskan wetlands before 8,600 years ago was due to hotter summers and colder winters, which could spell trouble in a warmer world, a new study suggests.
By Sid Perkins -
Chemistry
Methane-making microbes thrive under the ice
Antarctica’s ice sheets could hide vast quantities of the greenhouse gas, churned out by a buried ecosystem.
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Climate
National academies to review IPCC procedures
Global science organizations asked to help evaluate processes that produced 2007 climate report.
By Janet Raloff -
Climate
Ancient Norse colonies hit bad climate times
Temperatures in Iceland plummeted soon after settlers arrived, a new chemical analysis suggests.