"Wildlife conservation groups sued the U.S. government on Wednesday seeking to halt a plan to trap and kill as many as 120 mountain lions and black bears in Colorado in a bid to stem declines in populations of mule deer favored by hunters."

"Nevada lawmakers pressed forward Wednesday with a package of bills they say will make homemade solar energy an affordable option once again for state residents."

"CROW AGENCY, Mont. — The pale yellow halls of the Crow government building here are nearly empty these days, with 1,000 of this tribe’s 1,300 employees recently laid off."

"RENO — Sierra Club lawyers who've preached against the environmental evils of coal-burning power plants for decades are trying to force the closure of the last significant one in renewable energy-rich Nevada with arguments based on a different sort of green: money."

"U.S. officials are pressing a federal judge to lift his 2015 order blocking a proposed irrigation dam and fish passage on the Yellowstone River, warning that a rapidly-disappearing, ancient fish species faces a grim future with further delays to construction."

"Two federal agencies have approved a 2.4-mile-long open pit phosphate mine proposed by a Canadian company in southeastern Idaho."

"Thirty pronghorns, close cousins to antelope, died while crossing a frozen river in south central Idaho, in a very rare event for the sure-footed mammals, state wildlife managers said Tuesday."

"While many U.S. states have mandates and incentives to get more of their electricity from renewable energy, Republican legislators in Wyoming are proposing to cut the state off from its most abundant, clean resource—wind—and ensuring its continued dependence on coal."