"Snow cover across the entire Rocky Mountain range has been shrinking due to warmer spring temperatures over the past 30 years, a new study finds."

"PYRAMID LAKE, Nev. -- For most fishermen a 20-pound trout is a trophy, but for Paiute tribe members and fish biologists here the one Matt Ceccarelli caught was a victory."

"BILLINGS, Mont. -- Internal investigators faulted the Environmental Protection Agency on Thursday for years of delays in completing health studies needed to guide the cleanup of a Montana mining town where hundreds of people have died from asbestos exposure."

"High benzene levels in groundwater have been detected about 1,400 feet downstream of the presumed source of a hydrocarbons leak northwest of Parachute, the state Department of Natural Resources said today."

"GRANTS PASS, Ore. -- The last partner has dropped out of a proposal to ship coal from Montana and Wyoming to Asia through Oregon's Port of Coos Bay, port officials announced Monday."

"DENVER -- Authorities are investigating after construction crews discovered a problem with a liquid gas pipeline that allowed a carcinogen to seep into the ground near a large creek that feeds into the Colorado River."

"WRIGHT, Wyo. -- In Wyoming, folks call it the 'No Elk' plant, an $800 million project that -- once finished -- was meant to supply coal-fired power to 100,000 homes and support dozens of full-time jobs on the rolling prairie of northeast Wyoming."

"CHEYENNE, Wyo. -- A judge in Casper has sided with the state of Wyoming and ruled against environmentalists who sought to obtain lists of the ingredients that go into hydraulic fracturing fluids."

"BILLINGS, Mont. -- Federal regulators proposed $1.7 million in civil penalties against Exxon Mobil Corp. on Monday for safety violations linked to a pipeline rupture that spilled an estimated 63,000 gallons of crude oil into Montana's scenic Yellowstone River."

"WILLARD, Utah -- A Chevron fuel spill near a northern Utah bird refuge is much worse than originally thought as up to 27,000 gallons might have leaked, authorities said."

"An underground plume of toxic hydrocarbons from an oil spill north of the Colorado River near Parachute has been spreading for 10 days, threatening to contaminate spring runoff."

"With government snow plows idled by federal budget cuts known as the 'sequester,' small Wyoming towns on the fringe of Yellowstone are organizing a private fund-raising drive for this year's spring road-clearing operation inside the national park."

"BILLINGS, Mont. -- Environmental groups filed a federal lawsuit Wednesday against the owners of Montana's massive Colstrip coal-fired power plant, seeking to force the installation of more pollution controls at the decades-old facility."

In Fort Collins, Colorado, where the oil and gas industry is fighting a municipal ban on fracking, Coloradoan reporter Bobby Magill discovered that the state oil and gas association had forged some two-thirds of the "business" signatures on a petition to the city council.

"War has erupted between clean-air activists and state leaders, with the battleground being the data driving decisions about Utah’s air quality."