Obama: Climate Change Accord With China 'Historic Agreement'The United States and China unveiled ambitious targets Wednesday to reduce greenhouse gases blamed for global warming, aiming to inject fresh momentum into the global fight against climate change ahead of a make-or-break treaty to be finalized next year.
UN Report: Global Warming Human-Caused, Very High RisksGlobal warming is here, human-caused and probably already dangerous — and it's increasingly likely that the heating trend could be irreversible, a draft of a new international science report says.
Scalia: EPA Could Not 'Just Rewrite The Statute' To Bring Greenhouse Gases Under A ProvisionThe Supreme Court largely left intact Monday the Obama administration's only existing program to limit power plant and factory emissions of the gases blamed for global warming. But a divided court also rebuked environmental regulators for taking too much authority into their own hands without congressional approval.
Obama Says He 'Doesn't Have Much Patience' For Global Warming DeniersA White House official says President Barack Obama is telling the State Department it shouldn't approve the Keystone XL pipeline unless it's sure the project won't increase greenhouse gas emissions.