"The Trump administration will soon be required to more fully disclose any potential development or other activities on millions of acres of public lands excised from a pair of national monuments in Utah."

"LEADVILLE, Colorado — With ominous orange-gray smoke clouds seething on the western horizon, it's easy to understand how Colorado's highest city and other mountain communities are directly threatened by global warming."

"BUTTE, Mont. — The long-awaited discharge of treated wastewater from a former open pit copper mine into Silver Bow Creek in Butte has started with little fanfare."

"Warming waters and a series of dams are making the grueling migration of the Chinook salmon even more deadly — and threatening dozens of other species."

"EUREKA COUNTY, Nev. — Ambling across a desert valley, 100 or so wild horses congregate in and around muddy pools of water in a flat, arid section of the Bureau of Land Management's Pancake Herd Management Area."

"Scientists have detected microplastic pollution in Lake Tahoe’s deep blue waters for the first time. Now they are trying to determine its source and potential harm to the lake’s flora and fauna."

"Oil drilling in Nevada is a risky bet—the geology is complicated and drillers say the odds are small that they will actually find oil in a state where there are only 120 producing wells. But since President Donald Trump took office pledging to expand oil and gas leasing on federal lands, Nevada has become the Wild West for oil speculation."