Even if the president persuades Congress to fund his proposal, it'll still be less per year than what the U.S. spends on a single aircraft carrier.
The president is facing a healthy measure of skepticism from allies during his week of high-level diplomacy.
The commitment from the Amazon founder's Earth Fund represents roughly half a percent of his net worth.
Firefighters are working to protect the 275-foot-tall sequoia known as 'The General Sherman Tree' and other nearby giants.
The president jabbed his predecessor over one of his most famous claims.
The 30-second spot puts a cheerful, patriotic face on the policy many see as the last, best chance of quickly cutting power plant emissions.
Some oiled birds have already been rescued from the Alliance Refinery spill, but the operation could take weeks, Louisiana wildlife officials say.
South Lake Tahoe residents returning from fleeing the Caldor Fire have reported break-ins — but most have been by bears.
Climate change continues to wreak havoc across the American West.
Runaway climate change risks "catastrophic harm to health that will be impossible to reverse," the editorial reads.