"The Environmental Protection Agency (EPA) won’t yet say which areas of the country do not meet the Obama administration’s 2015 regulation on ozone."

"The congressman who said he 'would love to invalidate' the Endangered Species Act is closing in on his goal."

"Congress’s watchdog agency is examining whether the Environmental Protection Agency (EPA) violated legal provisions prohibiting lobbying and propaganda using agency resources."

"Two children, backed by the Clean Air Council environmental group, sued U.S. President Donald Trump and two of his Cabinet members on Monday to try to stop them from scrapping a package of pollution-reduction rules known as the Clean Power Plan."

"Robert Phalen, an air pollution researcher just named to a key U.S. EPA advisory committee, is defending earlier comments that the air can be 'a little too clean' for children's health as grounded in the broader field of pulmonary medicine."

"Walruses are facing a 'death sentence' after the Trump administration declined last month to list the Pacific walrus as endangered, according to the Center for Biological Diversity."

"A proposal by Energy Secretary Rick Perry to alter the nation's electricity markets would provide a windfall for a small group of companies — most strikingly one owned by coal magnate Bob Murray, a prominent backer of President Donald Trump."

"The United States has withdrawn as an implementing country from the Extractive Industries Transparency Initiative (EITI), an international effort to fight corruption in managing revenues from oil, gas and mineral extraction."

"President Trump has been accused of deliberately obstructing research on global warming after it emerged that a critically important technique for investigating sea-ice cover at the poles faces being blocked."

"For years Texas’ chief toxicologist, Michael Honeycutt, has accused the EPA of scaring the public about the health risks of toxic chemicals."