Residents of Salt Lake City neighborhoods peppered Chevron VP Bryan Tucker with questions and complaints at a community meeting following an oil spill there.

"The owners of a closed uranium mine near Golden have been ordered by the state health department to stop discharging polluted water into a creek that flows into a Denver-area reservoir."

"CHEYENNE, Wyo. — A state agency that oversees oil and gas development voted Tuesday to require energy companies to disclose what chemicals they're pumping underground to improve the flow of oil and gas into well bores."

The roundup of bison that have strayed from their refuge in Yellowstone National Park, part of a Quixotic plan to protect domestic cattle from the disease brucellosis, is an example of Western environmental gridlock.

"Gayla Benefield and Eva Thomson are sisters who have grown used to death. For two decades, they have watched asbestos from a nearby vermiculite mine strangle their parents, Thomson's husband, an aunt, several in-laws and numerous neighbors and friends."

Scientists in Idaho have dug up living specimens of the giant Palouse earthworm -- a foot-long white worm said to smell like lilies and thought to be extinct.

"Controversy is swirling in Montana after the governor, Brian Schweitzer, requested in a letter sent to local officials that they voice support for 'coal money' from a proposed new mine in exchange for receiving funds to build roads and other infrastructure projects."

"With grizzly bears being found farther out from the Rocky Mountain Front than in past years, officials with Montana Fish, Wildlife and Parks are holding community meetings — including one in Wolf Creek next month — to discuss better ways to co-exist with them."

"An energy company with government approvals to launch the first significant U.S. oil sands project is trying to raise money to build a plant in eastern Utah that would turn out 2,000 barrels of oil a day."

"The metal tungsten remains an important clue in research related to the Fallon [NV] leukemia cluster, which sickened 17 children and killed three of them between 1997 and 2004, scientists said Thursday."

"Scientific studies are turning up answers to a baffling mystery about the Great Salt Lake. The new findings help explain why concentrations of toxic mercury in the lake are higher than anywhere else in the country. The new studies suggest it's not so much our local pollution that's at fault -- it appears to be mainly the world's pollution."

"A federal judge has approved a first-of-its-kind settlement requiring the government to suspend 38,000 acres of oil and gas leases in Montana so it can gauge how oil field activities contribute to climate change."

Oil companies use carbon dioxide -- an industrial waste from gas operations, to boost production from played-out oil fields in Wyoming.

"People along the Clark Fork River are still getting used to the removal of Milltown Dam. But as far as the fish are concerned, it's history."

A proposal to build Utah's first nuclear plant along the Green River is running into a host of skeptical questions -- among them: where it will find cooling water in the middle of a desert.