President Trump’s administration is expected to undo Obama-era rules designed to limit greenhouse gas emissions from oil and gas fields and pipelines.

The Trump administration has ordered a sweeping about-face on Obama-era efforts to fight climate change, easing restrictions on coal-fired power plants.

The Trump administration has rolled back a landmark Obama-era effort targeting coal-fired power plants and their climate-damaging pollution.

The Environmental Protection Agency's new administrator says unsafe drinking water is "probably the biggest environmental threat" the world faces. 

The Senate has confirmed former coal industry lobbyist Andrew Wheeler to lead the Environmental Protection Agency.