"On March 24, 1989, the tanker Exxon Valdez struck a reef in Prince William Sound, Alaska, spilling 11 million gallons of crude oil into the pristine water. At the time, it was the single biggest spill in U.S. history. In a series of stories, NPR is examining the lasting social and economic impacts of the disaster, as well as the policy, regulation and scientific research that came out of it."

"It is a danger hidden beneath the streets of New York City, unseen and rarely noticed: 6,302 miles of pipes transporting natural gas."

"ARLINGTON, Wash. — Hopes dimmed Sunday for finding survivors in the nearly one square mile of muck and debris left by a mudslide that killed at least eight people and demolished dozens of houses."

"America’s largest industrial accident tore apart the town of Kingston, Tennessee. Five years later, has the industry learned anything?"

"Insects living in wetland grasses along Louisiana's coast oiled in the aftermath of the 2010 BP Deepwater Horizon disaster are still dying, the result of exposure to remaining oil in the marsh almost four years later, Louisiana State University entomologist Linda Hooper-Bui said Wednesday."

"Drought-plagued California will ease some protection for fish in the fragile San Joaquin-Sacramento River Delta, officials said Tuesday, a move expected to make more water available for farming and ease political tensions in an election year."

"NARAHA, Japan — 'Out of work? Nowhere to live? Nowhere to go? Nothing to eat?' the online ad reads. 'Come to Fukushima.'"

"The deadly explosion that ripped apart two buildings in New York's East Harlem on Wednesday morning brings new attention to a risk experts have been warning is especially great beneath the oldest U.S. cities: natural gas leaks."