"Protesters from New Orleans and Mississippi and a journalist from New York arrested during a protest against pipeline construction may continue their challenge of a Louisiana law carrying a possible five-year prison sentence for anyone convicted of trespassing in the area of a pipeline, a federal judge has ruled."

"Southern California air quality officials have adopted first-of-their-kind rules on warehouse distribution centers in an effort to cut truck pollution, increase electrification and reduce health risks in communities hit hardest by lung-damaging diesel exhaust."

"The Environmental Protection Agency said Thursday that it was weighing whether a controversial refinery on St. Croix posed “an imminent risk to people’s health” after a third accident in the span of three months sickened local residents and forced three schools to close."

"A new report puts into focus for the first time the scope of the state’s drinking-water problems and what it will take to fix them."

"An internal government watchdog on Thursday questioned the adequacy of Environmental Protection Agency (EPA) emissions standards for an air pollutant that the agency considers carcinogenic and another that it considers likely carcinogenic."

"Coal-fired power generation and its notoriously dirty emissions are rapidly declining, but the potential health gains from cleaner air are being stymied by biomass burning and combustion sources, Harvard University researchers found in a new study."