"An international team of prominent scientists has published what they say is the most comprehensive study to date calculating the complex climate impact of aviation emissions, reaffirming that contrail clouds produce more warming than carbon dioxide."

"For decades, farmers in California's Kern County have turned to wastewater from oil production to help irrigate their crops during extended dry spells."

"Chicago, the last big American city to require water pipes made of brain-damaging lead, is now the last one beginning to rip toxic pipes out of the ground."

"The Chesapeake Bay Foundation and Maryland sued the Environmental Protection Agency on Thursday, claiming the agency failed to enforce bay cleanup goals for New York and Pennsylvania."

"In a rare show of defiance of the Trump administration, key Senate Republicans joined Democrats on Thursday in agreeing to phase out chemicals widely used in air conditioners and refrigeration that are warming the planet."

"Fifteen tons of fireworks. Jugs of kerosene and acid. Thousands of tons of ammonium nitrate. A system of corruption and bribes let the perfect bomb sit for years."

"The EPA’s Office of Chemical Safety and Pollution Prevention is significantly reorganizing at the end of the month to respond to the department’s changing work, agency leaders said Tuesday."

"U.S. Gulf Coast communities got no assurance from the EPA that the agency’s second round of chemical risk evaluations will examine whether the groups’ particularly high exposures put them at high risk for asthma, cancer, or other diseases."

"For the communities of the Amazon, a land defined by its rivers, fish has always been an important part of the diet. ... But small-scale gold mining has turned these fish into an often deadly health hazard."