The Environmental Protection Agency is eliminating a Clean Air Act finding from 2009 that is the basis for much of the federal government's actions to rein in climate change.

People in poor countries often get little or no warning about floods, storms and other deadly weather. Local efforts are changing that, and saving lives.

A collapsed sewer line, about 8 miles from the White House, pumped 368 Olympic-sized swimming pools worth of wastewater into the Potomac. Repairs could take longer than previously expected.

Several athletes are objecting to the International Olympic Committee over sponsorship of the Games by major oil companies. They say fossil fuel use threatens winter conditions needed for snow sports.

Italy's Winter Olympics promised sustainability. But in Cortina, environmentalists warn the Games could scar these mountains for decades.

Chile is freezing its future to protect its plants.

We join a group of mudlarkers to see what's hiding by a creek in Philadelphia, as contributors ask what mudlarking, scavenging the banks of rivers or creeks for treasures, can uncover.

The EPA enforced a record low number of environmental laws and regulations during the first year of President Trump's second term in office.

Oil analysts who worked in Iraq say Iraqi oil sales had more protections after the U.S. invasion than Venezuelan oil sales today.

The Trump administration tried to end or privatize the government Energy Star efficiency program. But now Trump has signed a budget bill that fully funds the program and leaves it even stronger.