"EPA's revised Worker Protection Standard is scheduled to take effect on Monday (Jan. 2), but the new rules face an uncertain future in the new administration."

"U.S. Navy-trained dolphins and their handlers will participate in a last-ditch effort to catch, enclose and protect the last few dozen of Mexico's critically endangered vaquita porpoises to save them from extinction."

"President-elect Donald Trump’s energy agenda is shaping up to be a years-long effort to undo President Obama’s policies."

"There's more methane gas in the atmosphere than there used to be, by every scientific measure. The Obama administration has been trying to stem the increase of this powerful greenhouse gas, but the incoming Trump administration appears bent on keeping the government's hands off methane."

"It was supposed to be a triumphant morning for Republicans on Capitol Hill — a moment to demonstrate the merits of unified party rule in the age of Donald J. Trump. By noon, party leaders had a message for their charges: It was not going smoothly."

"Donald Trump may promise to get more pipelines built, but activists are energized by the grassroots success of 2016 and vow to keep fighting."

"With corporate funding of research, 'there’s no scientist who comes out of this unscathed.'"

"Four children died after someone at their home sprayed water on a previously applied pesticide, causing a reaction that produced toxic phosphine gas, officials in Amarillo, Texas, said."

"A new, Republican-controlled U.S. Congress convenes on Tuesday eager to repeal major portions of President Barack Obama's healthcare law and roll back environmental and financial industry regulations, but could quickly become embroiled in fights over President-elect Donald Trump's Cabinet choices."

"House Republicans, overriding their top leaders, voted on Monday to significantly curtail the power of an independent ethics office set up in 2008 in the aftermath of corruption scandals that sent three members of Congress to jail."