"Energy Secretary Rick Perry said Monday he does not believe carbon dioxide emissions are the main driver of the earth's record-setting warming, a core finding of climate science."

"Steve Perlman doesn’t take Prozac, like some of the other rare-plant botanists he knows. Instead, he writes poetry. Either way, you have to do something when a plant you’ve long known goes extinct."

"The debate over the future of energy innovation in the United States was renewed on Tuesday when a panel convened by the National Academy of Sciences released an in-depth report praising a key research office that President Trump wants to eliminate."

"In 1933, workers at a plant in Delaware began suffering breakdowns. Enter Alice Hamilton, one of history’s foremost occupational-health detectives."

"Up to seven years of emails that former ExxonMobil CEO Rex Tillerson wrote under the alias 'Wayne Tracker' may have been erased, a company witness has told investigators for the New York attorney general."

"The Food and Drug Administration (FDA) has resumed its first-ever endeavor to evaluate how much of a controversial chemical is making its way into the U.S. food supply. And the tests can’t come soon enough as safety concerns about the herbicide known as glyphosate grow."

"The inspector general for the Environmental Protection Agency is initiating a probe into possible collusion between a former high-ranking EPA official and Monsanto, the maker of the herbicide glyphosate, according to a letter the IG sent to a lawmaker last Friday that HuffPost has obtained."

"Environmental Protection Agency (EPA) Administrator Scott Pruitt on Friday refused to say whether President Trump believes in climate change."

"The campaign ad appeared during the presidential contest of 2008. Rapid-fire images of belching smokestacks and melting ice sheets were followed by a soothing narrator who praised a candidate who had stood up to President George W. Bush and 'sounded the alarm on global warming.' It was not made for a Democrat, but for Senator John McCain, who had just secured the Republican nomination."