"Six environmental groups have sued President Trump's administration over its approval of a permit for the Keystone XL pipeline."

"House Republicans just passed two bills that will make it harder for the Environmental Protection Agency to use scientific research to protect health and the environment. And they’ve done so under the deceptive guise of 'transparency.'"

"A supervisor at the Energy Department's international climate office told staff this week not to use the phrases 'climate change,' 'emissions reduction' or 'Paris Agreement' in written memos, briefings or other written communication, sources have told POLITICO."

"The House Science Committee convened a hearing on climate-change science Wednesday morning and it went just as I expected. We learned little, and political theater upstaged almost all productive discussion of science."

"Environmental groups that vowed to fight President Donald Trump’s efforts to roll back his predecessor’s plans to curb global warming made good on their promise Wednesday, teaming up with an American Indian tribe to ask a federal court to block an order that lifts restrictions on coal sales from federal lands."

"Donald Trump’s plan to bring an abrupt halt to America’s crusade against climate change will test California and other states like never before as they seek to wrest control of the nation’s energy future from a hostile White House."

"The European Union has led criticism of Donald Trump’s effort to unravel Barack Obama’s measures to combat climate change, suggesting that Europe will now take the lead in global efforts."

"A preliminary budget proposed by the Trump administration has targeted federal environmental programs left and right for elimination — and counted on the hit list are several popular energy efficiency programs, including the Environmental Protection Agency’s Energy Star Program and the Energy Department’s Weatherization Assistance Program."

"President Donald Trump is expected to lift a moratorium on federal coal-mining leases Tuesday -- and it probably won’t do the industry much good until years after he’s left office."

"Environmentalists and their allies are pledging to go to war against President Trump’s efforts to roll back his predecessor’s climate change agenda."