"Rainbow trout are rebounding in the Madison River, the world-class fishing stream where Montana's first known outbreak of whirling disease occurred about 15 years ago, devastating the rainbow fishery."

"Colorado Gov. Bill Ritter, a Democrat, is not known for being a friend of fossil fuels. ...So it was a bit of a surprise this month when Ritter told oil and gas executives that natural gas should not be seen as simply a bridge fuel."

"Should the federal government store 17,000 tons of mercury at the Idaho National Laboratory? 'The answer is no,' said Gov. Butch Otter."

It took a lawsuit by residents of Sunburst, Montana, to start cleanup of an underground spill of gasoline that took place 50 years earlier.

"The Environmental Protection Agency yesterday declared its first-ever 'public health emergency,' saying the federal government will funnel $6 million to provide medical care for people sickened by asbestos from a mine in northwest Montana."

"The Ninth Circuit Court of Appeals will hear oral arguments Wednesday on whether the Canadian corporation Barrick Gold will be allowed to construct and operate an open pit gold mine on Mt. Tenabo in Nevada."

"Hoover Dam generates some of the power that lights Las Vegas all night long. But there's something that's making that job a bit more difficult."

"A new $6 million federal grant could be the first step toward declaring a public health emergency in asbestos-contaminated Libby, Mont., the state's senior senator said Thursday."

"Dust storms accelerated by a warming climate have covered the Rocky Mountains with dirt whose heat-trapping properties have caused snowpacks to melt weeks earlier than normal, worrying officials in Colorado about drastic water shortages by late summer."

A USGS expert says the solution to problems with mercury plaguing Great Salt Lake will require more than just eliminating local sources. Also key are how it turns into harmful methylmercury and spreads through the food web.

"A federal court jury on Friday acquitted the big chemical products company W. R. Grace and three of its former executives on all charges that they had knowingly contaminated the small Montana mining town of Libby with asbestos, then conspired to cover up the deed."