Conserving oil is no longer an economic imperative for the U.S., the Trump administration declares in a major new policy statement that threatens to undermine decades of government campaigns for gas-thrifty cars and other conservation programs.

Scott Pruitt's rollbacks as head of the Environmental Protection Agency already are being felt by farmworkers and some others across America.

Environmental Protection Agency chief Scott Pruitt had an agency staffer reach out to Chick-fil-A on government email about a "potential business opportunity," emails show. The opportunity, according to one former EPA senior staff member, was exploring the possibility of a Chick-fil-A franchise for Pruitt's wife.

While threatened southern sea otters bob and sun in the gentle waves of this central California estuary, wildlife experts up and down the West Coast are struggling to figure out how to restore the crucial coastal predator to an undersea world that's falling apart in their absence.

"America is fully in the Paris agreement. There's only one man that dropped out," Arnold Schwarzenegger said of Donald Trump on Tuesday. "America did not drop out."

Experts say the real cost of raising, shielding or evacuating vulnerable spots, which include mass−transit systems, power plants and sewage plants, could be very high.

California's cap-and-trade program to fight climate-changing pollution from fossil fuels would survive long past Gov. Jerry Brown's time in office under a state proposal Tuesday.