"In the event of a dirty bomb or a nuclear meltdown, emergency responders can safely tolerate radiation levels equivalent to thousands of chest X-rays, the Environmental Protection Agency said in new guidelines that ease off on established safety levels."

"The cotton fields of sub-Saharan Africa hold a deadly secret—thousands of tons of obsolete pesticides are buried out of sight but slowly taking a toxic toll on the region’s people and environment."

"Sen. Tammy Duckworth (D-Ill.) has placed a hold on two of President Trump's Environmental Protection Agency (EPA) nominees."

"Environmental Protection Agency Administrator Scott Pruitt hinted Tuesday at plans to rid the agency’s scientific advisory boards of researchers who get EPA grants, arguing that the current structure raises questions about their independence."

"Raw sewage is pouring into the rivers and reservoirs of Puerto Rico in the aftermath of Hurricane Maria. People without running water bathe and wash their clothes in contaminated streams, and some islanders have been drinking water from condemned wells."

"The Environmental Protection Agency's acting science adviser is retiring, he told CNN Saturday."

"The Environmental Protection Agency (EPA) is warning Puerto Rico residents not to drink from wells at so-called Superfund sites amid reports that some on the island have sought water from the hazardous waste areas."

"In a gift to the struggling coal industry, a new air pollution rule finalized by the EPA will allow Texas coal plants to emit almost twice as much sulfur dioxide than an earlier proposal by the Obama administration. Aside from being a key component in forming haze, sulfur dioxide exacerbates respiratory illnesses such as asthma and contributes to acid rain."

"When Marla Waseka converted the gracious Franciscan nunnery northwest of St. Cloud to a boutique lakeside resort and retreat in 2008, the nitrate levels in her well were low. A few years later they were so high she had to warn her guests not to drink the water. And when authorities warned they’d shut her down if it weren’t fixed, she spent $12,000 to drill a deeper well for clean water."