Young climate activists and their attorneys who won a landmark global warming trial against the state of Montana are challenging President Donald Trump's energy agenda.

A Washington state man who authorities say led a wildlife trafficking ring on a Native American reservation in Montana that killed thousands of eagles and hawks was sentenced to nearly four years in prison.

A judge has ruled that the U.S. Forest Service can keep using chemical retardant dropped from aircraft to fight wildfires, despite finding that the practice pollutes streams in western states in violation of federal law.

A federal judge is weighing whether to severely limit the government’s use of aerial fire retardant to combat wildfires following arguments by environmentalists who are concerned about water pollution.