Tag: Sierra Club

More than a dozen members of the U.S. Congress sent a letter (PDF) to President Obama and to the Inspector General of the U.S. State Department requesting an investigation of the approval process for the Keystone XL pipeline.

Billionaire industrialists Charles and David Koch don't often see eye to eye with youngest brother Bill. On at least two things, though, they share common ground: A love for Colorado and an eagerness to fund Rep. Scott Tipton's campaigns.

In capitulation to business interests that objected to the proposed rules, President Obama has ordered the U.S. Environmental Protection Agency not to tighten ozone regulations.

Conservation groups today filed suit against the U.S. Bureau of Land Management (BLM) for allegedly illegally approving thousands of oil and gas wells on federal land in western Colorado without conducting proper air-pollution analysis.

Despite the Gulf oil spill, a massive pipeline break in Michigan and broad concerns about global warming, ambitious climate-change and energy legislation is likely dead for the year. That poses a conundrum, going forward, for environmentalists: How to convince lawmakers of the need for legislation to sever the country’s decades-long ties to oil and to reform energy policy more generally?

Coal ash, the byproduct of coal-fired power plants, made headlines late in 2008 when a Tennessee Valley Authority retention pond collapsed, polluting that state’s...

DENVER-- Saturday, tens of thousands of people held hands in hundreds of places around the world. They did it mostly on beaches. In towns...

A coalition of national environmental groups Wednesday petitioned U.S. Environmental Protection Agency (EPA) administrator Lisa Jackson to begin limiting air pollution from coal mines...

U.S. Sen. Mark Udall announced Wednesday that he introduced "Good Samaritan" legislation that would provide legal protection for non-profit and other groups who would cleanup water contamination issuing from abandoned mines across Colorado.

Astride a flying snowmobile, Alaska's '"first dude," Todd Palin, makes an appeal to voters who worry about restrictions on riding the beasts — called "snow machines" by serious riders — in a mailer distributed by a state Republican Party. "Could this be the last winter to ride in our national parks?" asks the flyer featuring the four-time winner of Alaska's grueling Iron Dog Snowmobile Championship.