"A proposal to bring down four hydroelectric dams near the California-Oregon border cleared a major regulatory hurdle Thursday, setting the stage for the largest dam demolition project in U.S. history to save imperiled migratory salmon."

"The record-breaking heat wave roasting the West is expanding its grip on Thursday, with the focus of the triple-digit heat shifting into California — particularly the Central Valley and desert regions."

"As storms grow more violent and Louisiana loses more of its coast, the family that makes Tabasco Sauce is fighting erosion in the marshland that buffers its factory from hurricanes and floods."

"Arab states are calling on the U.N. Security Council to discuss the dispute over Ethiopia’s plan to fill a giant dam it is building on the Blue Nile, Arab League Secretary General Ahmed Aboul Gheit said on Tuesday after a foreign ministers’ meeting."

"Two new reports draw attention to the scant laws safeguarding farmworkers’ health, including from worsening extreme heat."

"The American West contains 620,000 miles of fencing, threatening the migration of pronghorn, mule deer and other species."

"Earthworms are often seen as a welcome presence in gardens, and even on fishing hooks. But in the Northeast, experts say invasive "crazy worms" from Asia are creating havoc in forests — and they say the unusual worms are a danger to animals and plants, and especially to sugar maple trees."

"Lake Mead has declined to its lowest level since the reservoir was filled in the 1930s following the construction of Hoover Dam, marking a new milestone for the water-starved Colorado River in a downward spiral that shows no sign of letting up."

"The Biden administration is planning to restore wetlands protections lost under a Trump-era rule that promotes development, the EPA announced Wednesday."