"Two wildlife advocacy groups have petitioned California to grant endangered species status to the state’s mountain lions to help protect them from encroachments that threaten to drive them to extinction."

"The EPA should use its legal powers to get exposure and other data from chemical companies, according to representatives of organizations that normally disagree over how the agency implements the nation’s primary chemicals law."

"The Senate passed a defense bill Thursday that would require an increased response from the government to harmful chemicals that have leached into water in at least 43 states."

"Former EPA Administrator Scott Pruitt and other top agency officials were closely involved with reviving a private equity-owned oil refinery that went bankrupt last year and is now shutting down after a fiery explosion last week."

"Developers of the Atlantic Coast pipeline yesterday launched a highly anticipated Supreme Court appeal to preserve permits for the natural gas project to traverse the Appalachian National Scenic Trail."

"A former regional administrator will temporarily lead EPA's high-profile Office of Air and Radiation, following the exit of air chief Bill Wehrum."

"Canada has signaled a willingness to buck one of President Trump’s most significant environmental rollbacks — a major weakening of auto pollution standards — by signing a clean-car deal with California, the state leading the fight against the rollback."

"Bill Wehrum, a top Environmental Protection Agency official who helped reverse Obama-era rules aimed at cutting emissions of greenhouse gases and other air pollutants, is stepping down amid scrutiny over possible violations of federal ethics rules."

"The EPA is reversing a 24-year-old air policy that would allow power plants, refineries and other industrial sources to avoid stringent controls for toxic air pollution, it announced June 25."