"Advocates concerned about pollution from petroleum coke are worried an Ohio professor’s study downplaying the risks will gain new prominence now that he has been named to a key EPA post."

"Floodwaters in two Houston neighborhoods have been contaminated with bacteria and toxins that can make people sick, testing organized by The New York Times has found. Residents will need to take precautions to return safely to their homes, public health experts said."

"Commemorations for the anniversary of the Sept. 11 terrorist attacks began in New York late last week as they have for multiple years, with twin beams of light piercing the night sky, a tribute to those lost in the World Trade Center that could be seen across the region."

"For much of this week and last, devastation wrought by Hurricane Harvey in Houston and Hurricane Irma in the Caribbean has grabbed front-page headlines. But wildfires in the West have been wreaking destruction of their own, though it has attracted less attention. Vast swaths of land have burned, choking the air with ash and smoke."

"MIAMI -- Dozens of personnel from the Environmental Protection Agency worked to secure some of the nation's most contaminated toxic waste sites as Hurricane Irma bore down on Florida. The agency said its employees evacuated personnel, secured equipment and safeguarded hazardous materials in anticipation of storm surges and heavy rains."

"Houston’s sprawling network of petrochemical plants and refineries released millions of pounds of pollutants in the days after Hurricane Harvey began barreling toward Texas."

"GALENA PARK, Texas —  Cindy Sanchez began to feel ill while barbecuing just before Harvey's torrents started pelting this city just east of Houston, along a corridor with the nation's highest concentration of petrochemical plants."

"Three environmental groups sued the Trump administration Thursday over its decision to delay a new regulation to increase fines for automakers who violate efficiency rules."

"A group of first responders exposed to smoke from a Crosby, Tex., chemical plant fire after Hurricane Harvey are suing the owner of the plant for more than $1 million, saying that they vomited and gasped for air in the middle of the road in a scene the suit describes as 'nothing less than chaos.'"

"If it’s sudsy, it probably contains dioxane, a likely carcinogen."