"U.S. environmental regulators on Tuesday announced they are leaving intact an air quality standard for power plant pollution that can worsen asthma in children, despite calls by health advocates for a tougher rule."

"President Trump has tapped Daniel Jorjani to serve as the Interior Department's top lawyer, a slot that's been vacant for more than two years."

"New efforts by President Trump and his staff to question or undermine the established science of climate change have created a widening rift between the White House on one side, and scientific facts, government agencies, and some leading figures in the president’s own party on the other."

"Democratic voters will have to decide among a slate of White House hopefuls tripping over themselves to commit to tackling climate change and other environmental issues."

"A recent report from the League of American Bicyclists says more pedestrians and bicyclists died in 2016 than at any time in the past 25 years.

"An iceberg roughly twice the size of New York City is set to break away from an Antarctic ice shelf as a result of a rapidly spreading rift that is being monitored by NASA."

"Evidence for man-made global warming has reached a “gold standard” level of certainty, adding pressure for cuts in greenhouse gases to limit rising temperatures, scientists said on Monday."

"Security footage shows an EPA security guard push an Associated Press reporter out of the agency's headquarters last year."

"All 47 members of the Senate Democratic caucus plan to introduce a resolution Tuesday urging Congress to act immediately on climate change, a Democratic leadership aide tells POLITICO."

"The House voted on Tuesday to overturn President Trump’s declaration of a national emergency on the Mexican border, with just 13 Republicans joining Democrats to try to block his effort to divert funding to a border wall without congressional approval."