California lawmakers voted to extend the state's climate change fighting efforts out to 2030 on Wednesday, giving a new lease on life to the most ambitious greenhouse gas reduction program in the c

Dozens of wildfires raged in the arid U.S. West on Tuesday, blackening hundreds of square miles of land and forcing residents from homes in California and Washington state.

The California Assembly on Tuesday passed a bill to extend the state's ambitious program to fight climate change beyond 2020, but minutes later it posted disappointing results from an auction of ca

The historic Hearst Castle, a major tourist attraction on California's central coast, will be closed to the public through the week as a safety precaution due to a wildfire in the area that has des

A Southern California wildfire raged virtually unchecked in thick brush on Wednesday after destroying dozens of houses near a highway corridor between Los Angeles and Las Vegas and forcing as many

A California lawmaker on Thursday said she will withdraw a bill that would have required 15 percent of new car sales be zero emission vehicles by 2025 due to opposition from automakers, the oil ind

James Webb huddled on the hill with his dog and watched the fire advance, the flames licking through the cherry trees, the oak trees, the peach trees, then swaying just short of his home, the last

Authorities in southern California ordered the evacuation of 82,000 people on Tuesday, after a wildfire broke out in a mountain pass and rapidly engulfed 9,000 acres (3,642 hectares), an official s

U.S. regulators on Tuesday announced new standards aimed at cutting greenhouse gas emissions from medium- and heavy-duty trucks by up to 25 percent by 2027.

More than 2,000 Southern Californians die early each year from polluted air, and the region would benefit the most of anywhere in the country from reducing ozone and fine particle pollution below c