Ellen Knickmeyer

This undated image supplied by the U.S. Fish and Wildlife Service shows bison at the Rocky Mountain Arsenal National Wildlife Refuge in Commerce City.

U.S. orders refuges to staff for hunters despite government shutdown

January 9, 2019 at 1:33 p.m.

In an email sent Tuesday afternoon, Margaret Everson, principal deputy director of the Fish and Wildlife Service, cites "opportunities, including hunting" that are being lost in the shutdown.

Human waste, trash overwhelm some national parks in shutdown

December 31, 2018 at 10:16 p.m.

Human feces, overflowing garbage, illegal off-roading and other damaging behavior in fragile areas were beginning to overwhelm some of the West's iconic national parks on Monday, as a partial government...

Trump EPA orders rollback of Obama mercury regulations

December 28, 2018 at 11:16 p.m.

The Trump administration has targeted an Obama-era regulation credited with helping dramatically reduce toxic mercury pollution from coal-fired power plants, saying the benefits to human health and the environment may...

Visitors approach the Bunker Hill Monument, Monday, Dec. 24, 2018, in Boston. The historic site, erected to commemorate the Revolutionary War Battle of Bunker Hill, and run by the National Park Service, was closed Monday due to a partial federal government shutdown. The federal government is expected to remain partially closed past Christmas Day in a protracted standoff over President Donald Trump’s demand for money to build a border wall with Mexico. (AP Photo/Steven Senne)

National Christmas tree went dark, some parks close as shutdown continues

December 25, 2018 at 8:21 a.m.

The lights were not twinkling. The toy trains were not whirring. Even the nearby bathrooms were locked.

Interior Secretary Ryan Zinke resigning, cites “vicious” attacks

December 15, 2018 at 2:54 p.m.

Interior Secretary Ryan Zinke, facing federal investigations into his travel, political activity and potential conflicts of interest, will be leaving the administration at year's end, President Donald Trump said Saturday.

Rocky Flats National Wildlife Refuge Southeast ...

Trump鈥檚 EPA moving to loosen radiation limits, experts say

October 2, 2018 at 8:11 p.m.

The EPA is pursuing rule changes that experts say would weaken the way radiation exposure is regulated, turning to scientific outliers who argue that a bit of radiation damage is...

EPA says a little radiation may be healthy, as it moves to weaken regulations

October 2, 2018 at 11:47 a.m.

The Trump administration is quietly moving to weaken U.S. radiation regulations, turning to scientific outliers who argue that a bit of radiation damage is actually good for you -- like...

Then-Environmental Protection Agency administrator Scott ...

Ousted EPA head Scott Pruitt denies getting improper gifts, income

September 12, 2018 at 9:41 p.m.

Scott Pruitt, the scandal-ridden former Environmental Protection Agency chief, denied on Wednesday that he had obtained any extraordinary gifts or income as a result of his Cabinet-level post, and dismissed...

FILE – In this March 25, 2014 file photo, a worker adjusts pipes during a hydraulic fracturing operation at a well pad near Mead, Colorado. The Trump administration is moving to roll back Obama-era rules intended to reduce leaks of climate-changing methane from oil and gas facilities. The Environmental Protection Agency formally released a proposed substitute rule Tuesday. The EPA acknowledges the rollback would lead to more methane leaking into the atmosphere. The agency says relaxing oversight will save $75 million in regulatory costs annually. (AP Photo/Brennan Linsley, file)

EPA rollback would ease rules on climate-changing methane

September 11, 2018 at 6:00 p.m.

The Trump administration moved closer Tuesday to rolling back Obama-era rules reducing oil and gas industry leaks of methane gas, one of the most potent agents of climate change.

President Donald Trump speaks during an event to salute U.S. Immigration and Customs Enforcement (ICE) officers and U.S. Customs and Border Protection (CBP) agents in the East Room of the White House in Washington, Monday, Aug. 20, 2018. (AP Photo/Andrew Harnik)

Trump plan scales back Obama鈥檚 coal emissions standards

August 21, 2018 at 9:41 a.m.

The Trump administration on Tuesday came out with new rules scaling back Obama-era constraints on coal-fired power plants, striking at one of the former administration's legacy programs to rein in...

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