"The controversial – but now complete – Bayou Bridge Pipeline has drawn another legal challenge from the Atchafalaya Basinkeeper environmental group, which questions why the pipeline was allowed to begin operating on April 1 without having an approved emergency response plan."

"'Tipping elements' in the rapidly warming Arctic may add trillions of dollars to the long-term costs of climate change, a new study suggests."

"Three years after demonstrations over an oil pipeline in Standing Rock, N.D., made national headlines, some states are moving to limit protests."

"EPA has decided to continue excluding oil and gas waste from federal hazardous waste rules, agreeing with industry that states are already doing the job adequately."

"Joe Biden is betting a blue-collar campaign can win over a Democratic Party that's grown more green than ever."

"California's reign as the U.S. state with the worst air pollution continues, with Los Angeles again the nation's smoggiest metro area, according to a new report released Wednesday."

"Environmental Protection Agency (EPA) Administrator Andrew Wheeler left a former lobbying client off of his financial disclosure documents, according to a new letter from House Oversight and Reform Committee Chairman Elijah Cummings (D-Md.)."

"The Interior Department’s Office of Inspector General has opened an investigation into whether six of President Trump’s appointees have violated federal ethics rules by engaging with their former employers or clients on department-related business."