"New herds of genetically pure wild bison may once again roam vast expanses of the American West where the iconic animal has been absent since the end of the 19th century, under a tentative plan federal officials advanced on Wednesday."

"A Boulder County District Court judge has struck down Longmont's fracking ban but said the ban can remain in place while the city considers an appeal."

"Twenty-one activists were arrested Monday during a "blockade" of a tar sands company’s construction equipment in eastern Utah, according to anti-tar sands groups who accused Uintah County sheriff’s deputies of 'brutality.'"

"Protesters gathered to illegally dredge for gold on Tuesday in an Idaho river where such mining is banned, in an open challenge to the U.S. government's authority to regulate public waters and lands in Western states, an organizer said."

"A potentially carcinogenic form of the element chromium is in Boulder’s drinking water and there are no plans to remove it anytime soon."

"Many parts of the U.S. have been getting warmer over the past several decades, and also experiencing persistent drought. Wildlife often can't adjust. Among the species that are struggling is one of the American West's most highly prized fish — the cutthroat trout."

"Though much maligned for its invasion into the air Utahns breathe, carbon is an element that is everywhere, throughout the earth and in all living creatures. In the human body, it’s the second most abundant element, right after oxygen. And in the heart of Utah’s Carbon County, carbon—the primary stuff of coal—is the lifeblood of the residents and the hardscrabble communities formed to mine the black gold that has powered the world for generations."