Environmental Protection Agency

By tripling their emission of pollutants, Asian countries have contributed as much as 65 percent of a rise in ozone levels in the western U.S., scientists say.

The Obama-era "Waters of the United States" rule defines which small bodies of water are subject to U.S. authority. Opponents such as farmers, homebuilders and golf course owners say it goes too far.

The Obama-era "Waters of the United States" rule defines which small bodies of water are subject to U.S. authority. Opponents such as farmers, homebuilders and golf course owners say it goes too far.

The Obama-era "Waters of the United States" rule defines which small bodies of water are under U.S. authority. Opponents such as farmers, homebuilders and golf course owners say it poses a burden.

The Senate approved the longtime EPA critic on a 52-46 vote. Democrats Joe Manchin of West Virginia and Heidi Heitkamp of North Dakota voted for him; Republican Susan Collins of Maine voted against.

The Trump administration faces protests for its plan to aggressively rein in the EPA, an agency created by President Richard Nixon. But environmental protection was not always so politically divisive.

The Trump administration's transition officials ordered the Environmental Protection Agency to cut its presence at the event. The team cited travel costs in explaining the abrupt move.

When President Trump nominates a new Supreme Court justice, he will be choosing someone who may rule on a case affecting golf course profits. The case helps illustrate Trump's conflicts of interest.

A Trump official says he expects peer-reviewed research will be subject to vetting during the transition period. If such a rule became permanent, it would be a radical departure from existing policy.

California Gov. Jerry Brown is vowing to lead the nation on climate change, as the Trump administration pulls back. But Trump's EPA could get in California's way over tougher car rules.

Oklahoma Attorney General Scott Pruitt has sparked controversy for his denial of climate science and his ties to fossil-fuel interests. Here's what to expect in Wednesday's confirmation hearing.

The Environmental Protection Agency says Fiat Chrysler violated the Clean Air Act by allegedly installing software in about 104,000 vehicles that masked the true level of emissions.