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.
Global 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.
The 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.
A 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.