BUTTE — Montana Resources has reached a settlement with the state for violating air quality standards during a blowing tailings event last year.
CHEYENNE, Wyo. — The air quality in Laramie County and other communities in Wyoming could fall below federal standards under a new rule being considered by the U.S. Environmental Protection Agency.
NEW YORK — Hundreds of corporations, insurance companies and pension funds are calling on world leaders gathering for a U.N. summit on climate change this week to attack the problem by making it more costly for businesses and ordinary people to pollute.
CHEYENNE, Wyo. — The U.S. Environmental Protection Agency can’t force several Wyoming power plants to install new pollution-control equipment while the state’s legal challenge to federal regulations plays out in court, an appeals court panel ruled Tuesday.
CASPER, Wyo. — The location of a proposed facility to test new technologies for capturing carbon dioxide from a working power plant could be selected by state officials within the next few months, a utility official said.
CASPER, Wyo. — New pollution rules for the Pinedale area will have to wait a little longer.
CASPER, Wyo. — A state advisory board moved last week to delay recommending a proposed air quality rule for natural gas facilities in the Upper Green River Basin, saying regulators need to consider concerns raised by industry and environmentalists.
A fire at ExxonMobil refinery east of Billings sent heavy, black smoke over portions of Lockwood on Friday.
CASPER, Wyo. — Anxiety reigns in Wyoming, America's top coal-producing state, ahead of President Barack Obama's expected new carbon dioxide limits for coal-fired power plants.
FLINT, Mich. — At a time when many people have put off buying a new car until the economy improves, the last thing we need is a stringent government regulation on fuel efficiency that will raise the cost of vehicles and make matters even more difficult for consumers.
GREEN BAY, Wis. — In 2010 and again in 2012, the Obama administration made one of its most important decisions on energy use and climate change.
While Montana's wildfire season has been pretty quiet — with about 50,000 acres torched as of Sunday — you wouldn't know it looking at the skies in Billings over the weekend.
Smoke from Idaho and Wyoming fires fills the Yellowstone Valley as Robert Lucas and his son, 5-year-old Camren, of Roundup, look over Billings from Swords Park.
Carbon dioxide emissions rose by more than 11 percent in Montana last decade as the state continued to have one of the highest per capita greenhouse gas emission rates in the country.
HELENA — The American Lung Association is ranking three Montana counties as having some of the worst air quality in the nation with regards to particulates on a 24-hour basis.
HELENA — An Oregon timber company has agreed to pay $130,925 to a wood stove replacement program under a settlement that resolves air pollution violations alleged by Montana regulators.
CHEYENNE — The Wyoming Department of Environmental Quality's Air Quality Division has started to operate new air quality monitoring stations in Casper and Rock Springs.
Environmental groups filed a federal lawsuit Wednesday against the owners of Montana's massive Colstrip coal-fired power plant, seeking to force the installation of more pollution controls at the decades-old facility.
SANTA CLARA, Calif. — Abandoning fossil fuel exploration altogether is not feasible for America. But significant further government support of oil and gas drilling in places like the Alaskan wilderness or the American heartland in the name of economic growth would be a huge mistake.
The Missoula City-County Health Department has issued a Stage 2 air pollution warning, alerting the public that particulate pollution in Missoula's air exceeds national limits.