Ethics documents show the agency found “a compelling need” to let Anne Vogel participate in sample and data analysis of the ...

The administration is poised to take unpopular actions as soon as next week to protect the West’s water supplies as the ...

The battle centered on the agency’s obligation to study the impact of its air standards on protected animals and plants.

By attacking Iran, President Donald Trump has indirectly boosted an industry he has done his best to weaken in the U.S.

Experts say while oil and gas suppliers like the United States are reaping the benefits of higher prices now, the world could see the type of strategic shifts that took place after the Middle East oil ...

The unusual decision affecting a massive engineering effort to keep invasive fish out of the lakes has inflamed tensions with ...

The proposal faces legal and congressional hurdles as President Donald Trump pushes to reshape Washington's landscape.

Twisting, quivering, swaying: Devils Tower, the stunning rock feature protected by a national monument in northeast Wyoming, ...

Oil tankers and cargo ships line up in the Strait of Hormuz as seen from Khor Fakkan, United Arab Emirates, on March 11. Iran ...

An appeals court on Thursday reaffirmed the National Park Service can’t replace a slavery exhibit that it dismantled earlier ...

Energy Secretary Chris Wright said the retiring plants were needed to potentially save lives. None of them have generated ...

Prisoners and nonprofit advocates await a decision from a federal judge after asking him to declare state prison conditions unconstitutional.