Chevron, Exxon, and BP are among companies most responsible for climate change since dawn of industrial age.
Rules bar government scientists from talking about their own work with journalists and even fellow researchers.
A new study links 2012's extreme heatwaves, Hurricane Sandy, and ice melt to climate change.
Scientists predict stronger storms but say changing air patterns will prevent them from hitting U.S. East Coast.
The fracking boom in Texas sucks away precious water from beneath the ground, leaving cattle dead, farms bone-dry, and people thirsty.
The lunch, priced at $250 to $2,500, is the second show of support from Google for the anti-climate cause in recent weeks.
The sequel of an Oscar-nominated film on the natural gas boom puts the focus on climate change, the oil lobby, and the U.S. government.
Climate change has accelerated the normal process of erosion along Alaska's rivers and coasts.
Residents of Newtok, Alaska, know they must evacuate, but who will pay the $130 million cost of moving them?
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