Pruitt has recently come under fire for his habit of flying first class.
Some say President Donald Trump's recent decision is part of his effort to nix Obama-era climate change rules that Trump says hurt the U.S. economy.
Before Scott Pruitt ran the Environmental Protection Agency, he railed against it. We look at how he's fighting it from the inside.
The government report says there is "no convincing alternative explanation" regarding humanity's impact on global warming.
The Trump administration wants to make the U.S. more coal-friendly, but many plants that once created power from coal have already left the industry.
After former HHS Secretary Tom Price's resignation, the rest of President Trump's Cabinet is under scrutiny for their travel.
The EPA confirmed 13 of those sites in Texas are flooded and could be damaged following Hurricane Harvey.
The Trump administration ended the panel that explains the federal climate change report to the public.
The report says it's "extremely likely" that more than half of mean global temperature rise since 1951 was caused by human activity.
Emails obtained and published by The Guardian show the USDA's Natural Resources Conservation Service might soon avoid the phrase "climate change."
President Donald Trump's Environmental Protection Agency tried to delay enforcing regulations on oil and natural gas, but that might have hit a wall.
A petition to ban chlorpyrifos was shut down by EPA Administrator Scott Pruitt in March.