The president wants to let coal plants emit more of the neurotoxin. The Supreme Court nominee's views on the subject are already clear.

His proposed rule wouldn't just weaken Obama's emissions regulations. It may encourage coal plants to remain in business longer.

The president's climate policies could cause the equivalent of adding 340 million cars to the road.

The administration says thousands more people will die in traffic accidents if vehicles are forced to become more fuel-efficient.

A once-suppressed report on water contamination in military communities has led to little action, victims say. But there are rumblings in Congress.

How Justice Anthony Kennedy's retirement could help the EPA chief on his quest to weaken clean air and water regulations.

A new, previously suppressed report has grave implications for service members, veterans, and their families.

The EPA chief is making journalists wait longer than a year for even the simplest document requests.

Newly uncovered documents reveal what the EPA chief wanted to hide during his "State Action Tour" last summer.

The EPA chief hasn't done much to protect the environment, so he's claiming the former president's accomplishments as his own.

Republicans claim the EPA chief is a "victim" of political attacks—an insult to actual victims of Pruitt's policies.