"Researchers at the Oklahoma State University South Central Research Station in Chickasha for the first time Monday will begin using wastewater to irrigate crops grown on one of its test fields."

"The US Court of Appeals for the 6th Circuit granted a temporary stay against the Water of the United States rule on Friday."

"Gov. Jerry Brown of California signed legislation on Thursday that bans plastic microbeads, giving his state one of the country’s strongest laws against the tiny abrasives used in exfoliators and other products."

"South Carolina's governor warned on Thursday that several coastal areas were about to be hit by a second round of major flooding, while residents inland hauled soaked furniture and appliances from homes left in ruins by unprecedented rainfall."

"More than a year after residents of Flint, Mich., were switched onto a water supply that has since been linked to rising levels of lead in the blood of some children, state and city officials abruptly reversed course, announcing on Thursday that Flint would return to its old water source."

"A researcher from Macquarie University in Australia has published a study examining recent extinctions within two vulnerable groups of animals — reptiles and amphibians — and the results are cause for alarm. Most notably, they indicate that approximately 200 frog species have already gone extinct, and hundreds more may be on their way out."

"COLUMBIA, S.C. -- Flooding from historic rainfall in South Carolina claimed two more lives on Wednesday, and the threat of further inundation from swollen rivers and vulnerable dams put already ravaged communities on edge."

"The California Coastal Commission on Tuesday endorsed a plan to allow operators at the defunct San Onofre nuclear power plant to move tons of highly radioactive fuel from storage pools into steel canisters sheathed by concrete."

"Stain repellent and fire retardant chemicals that scientists know little about are increasingly showing up in herring gull eggs around the Great Lakes, spurring concern for potential health impacts."

"At least 18 dams have breached or failed in South Carolina since Saturday, the state's emergency management agency said early Tuesday."