"One of the world’s largest titanium manufacturers has agreed to pay a record $13.8 million penalty for producing and dumping banned cancer-causing chemicals at its Henderson factory."

"Wyoming, the nation's top coal-producing state, is the first to reject new K-12 science standards proposed by national education groups mainly because of global warming components."

"Colorado's intensifying oil and gas boom is taking a toll on soil — 200 gallons spilled per day seeping into once-fertile ground — that experts say could be ruinous."

"The Moapa Band of Paiute Indians thought coal ash from a nearby plant was killing them off; so they fought back."

"Federal protection status for a population of grizzly bears facing extinction in the mountains of Idaho and northwest Montana should be raised to endangered from threatened, environmentalists said in a lawsuit filed on Tuesday."

"U.S. officials ended a stand-off with hundreds of armed protesters in the Nevada desert on Saturday, calling off the government's roundup of cattle it said were illegally grazing on federal land and giving about 300 animals back to the rancher who owned them."

"Mini-storms of tumbleweed have invaded the drought-stricken prairie of southern Colorado, blocking rural roads and irrigation canals, and briefly barricading homes and an elementary school."

"When rancher Clint McRae first saw the swirling green and white ponds of arsenic, boron, mercury and lead-containing sludge 10 miles from his property, it was in a photography show at the Montana statehouse. He first thought they were abstract art, but quickly realized some were aerial photos of the ash slurry left over from burning coal at southeastern Montana’s Colstrip Steam Electric Station."