"A Senate Energy and Natural Resources subcommittee will consider nine energy and climate policy bills this week, covering topics from engineering education and wind energy research to carbon capture technology development incentives and biofuels for small engines."

"The head of the U.N.'s panel of climate scientists on Monday strongly defended findings that humans are warming the planet, after critics said that leaked emails from a British university had undermined evidence."

"The Obama administration's greenhouse gas ruling Monday was meant to send a warning to industry, the U.S. Congress, and the world: with or without a law, Washington will tackle global warming in a serious way."

"In the long term, the Earth's temperature may be 30-50% more sensitive to atmospheric carbon dioxide than has previously been estimated, reports a new study published in Nature Geoscience this week."

"The largest and most important U.N. climate change conference in history opened Monday, with organizers warning diplomats from 192 nations that this could be the best, last chance for a deal to protect the world from calamitous global warming."

"Germany's top climate researcher says he hopes he and his fellow scientists around the world have got it all wrong about global warming. Hans Joachim Schellnhuber, head of the Potsdam Institute for Climate Impact Research, told Reuters he gets no pleasure at all in being a prophet of doom and hopes he and his colleagues have overlooked effects that could still arrest climate change."

"The release of toxics once bound within glaciers may be a little-anticipated consequence of climate change. Adverse effects are likely occurring, or could occur, on almost every continent."

Sandstorms reminiscent of the 1930s dustbowl are becoming more common in Navajo country -- and climate change seems to be a culprit.

"Two environmental groups petitioned U.S. EPA today to set national limits for greenhouse gases using the Clean Air Act."