Federal data shows ranks of scientists who carry out environmental research, enforcement and other jobs fell sharply in some agencies under former President Donald Trump.

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 is proposing easing more Obama-era protections on contaminants from coal-fired power plants. 

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 Environmental Protection Agency's inspector general says data released to the public about municipal sewer discharges is not accurate.

The Trump administration has proposed a major rollback in Obama-era restrictions on climate-changing emissions from coal-fired power plants. 

Environmental Protection Agency head Scott Pruitt is announcing the departure of two top aides amid ethics investigations at the agency. 

Environmental Protection Agency chief Scott Pruitt faces potentially make-or-break hearings on Capitol Hill, where he is expected to face questions about spending and ethics scandals that have triggered bipartisan calls for his ouster.

The Trump administration moved Tuesday to roll back an Obama administration policy that protected more than half the nation's streams from pollution but drew attacks from farmers, fossil fuel companies and property-rights groups as federal overreach.