Greenwire

Black bears in the Mid-Atlantic region are going bald due to a disease outbreak that scientists don't fully understand.

When nonnative trout showed up in Yellowstone Lake in 1994, it was an ecological catastrophe. Former Yellowstone National Park Superintendent Bob Barbee once called it "an appalling act of environmental vandalism," but the park's chief fisheries biologist now thinks the fish may have swum there themselves.

U.S. officials say an Idaho road in important grizzly bear habitat must be repaired because of national security concerns.

Two experienced climbers fell to their deaths Saturday while scaling El Capitan, a popular rock formation in Yosemite National Park.

The acting head of the National Park Service has apologized for behavior that was "inappropriate to the workplace" after an investigation concluded that a crude gesture he made during a hallway conversation did not constitute harassment.

The League of Conservation Voters, along with its state partners, has launched a $1 million campaign urging Congress to permanently reauthorize the Land and Water Conservation Fund before the program expires Sept. 30.

The House Appropriations Committee plans to vote this week on one of the most contentious spending measures of the year: legislation to fund EPA and the Interior Department.

The White House has altered key details of a proposal for revised clean car rules, an under-the-radar regulatory move that seems to confirm reports of an assertive rollback.

A federal judge Friday ordered EPA to produce documents related to Administrator Scott Pruitt's claims dismissing human activity as a primary contributor to climate change.

A lobbyist tied to a Capitol Hill condo that EPA Administrator Scott Pruitt rented part of last year had business with the agency on behalf of at least three clients.

Democrats on the House Oversight and Government Reform Committee released excerpts today of an interview with a top aide to Administrator Scott Pruitt, shedding more light on her housing search on behalf of the embattled EPA chief.

The National Park Service's newly revealed plan to relocate its Pacific West Regional Office headquarters from San Francisco to Vancouver, Wash., would save millions of dollars but also disrupt some careers and possibly pose some political challenges.

NOAA's acting administrator, Timothy Gallaudet, kicked off an international symposium in Washington today by stressing the need for scientists at his agency to study the effects of climate change to protect the oceans.

Energy Secretary Rick Perry today said President Trump was "right" to order the Department of Energy to halt the closure of coal and nuclear plants, while warning that the nation's pipelines are vulnerable to cyberthreats.

John Davis has been devastated since his only son disappeared in September 2015 while working as an observer on a fishing vessel, 500 miles west of Peru.

An environmental group says a forest in Indonesia is being logged despite an order from the country's forestry and environmental ministry to stop the practice last year.

Searchers worked all day yesterday in the area surrounding Guatemala's Volcan de Fuego after an eruption spewed ash and lava over the local region.

A Superior Court judge has ruled against a California man who has been operating an illegal landfill north of Los Angeles that he hopes to turn into a "big, beautiful park."