"The Chinook salmon that Randy Settler and other Yakama tribal fishermen are pulling from the Columbia River are large and plentiful this summer, part of one of the biggest spawning runs since the 1960s. It is a sign, they say, of the river’s revitalization, through pollution regulations and ambitious fish hatchery programs. But barely four miles upstream from the fishermen’s nets, state workers are still cleaning up after a major oil train derailment in June."

"Environmentalists are again taking aim at the company that proposed the Keystone XL pipeline — this time for another of its projects they fear would send hundreds of supertankers laden with crude oil down the Atlantic coast to refineries in Texas and Louisiana."

"Thirty years after atomic fallout from the Chernobyl meltdown rendered an area the size of Luxembourg uninhabitable for centuries, Ukraine is seeking investors to develop solar power near the defunct Soviet reactors."

"A federal judge in Virginia could soon decide a potentially landmark case determining whether power plants can be held accountable for contaminating surface waters with toxic chemicals that leached into the ground from coal ash pits."

"Presidential hopeful Hillary Clinton would push Congress to reverse a 2005 measure that exempts hydraulic fracturing from certain federal environmental standards, a top adviser said."

"Enough, already. That’s what 67 prominent scientists are telling Secretary of the Interior Sally Jewell, whose department is conducting a review of the U.S. program to lease federal lands for coal mining."

"A coalition of environmental groups went to federal court Wednesday to stop a Texas company's plan to explore for oil and gas in the Big Cypress National Preserve."

"Environmental groups won a partial victory last week in their campaign to make sure Peabody Energy cleans up its coal mines, a growing concern as the company is going through Chapter 11 bankruptcy proceedings."

"Long before wind and solar, water was the nation’s top renewable energy source. Going back some 100 years, the United States built enormous dams — like the Depression-era Hoover Dam in Nevada — to produce tremendous amounts of energy."

"The oil-train boom is waning almost as quickly as it began."