In a setback for climate advocates, the Supreme Court ruled Thursday that the EPA overstepped its Congressional authority when it set Obama-era limits on greenhouse emissions.
Wyoming regulators have started working out their monitoring strategy months before the first blooms emerge.
Wyoming officials and the state's largest utility may have averted disaster at the Jim Bridger Power Plant.
An article in Thursday’s Star-Tribune headlined “EPA rejects pollution plan” reported incomplete information about the finality of the Environ…
A decision is in for unit 2 of the Jim Bridger Power Plant. And it’s not the news the state was hoping for.
Gov. Mark Gordon signed a temporary emergency suspension order Tuesday that allows unit 2 of the Jim Bridger Power Plant to continue operating for "at least four months" beyond the intended shut down date of New Year's Day.
Yellowstone’s thermal waters are more than just hot — they also contain a variety of elements, some of which are potentially toxic.
Unit 2 of the Jim Bridger Power Plant is six weeks from violating federal air quality regulations, putting the plant at risk of premature retirement.
After an Obama-era methane rule was repealed by the Trump administration, reinstated in court and then struck down for good last October, the …
The case involves a number of refineries — including HollyFrontier's Cheyenne Refinery — that argued that siding with the Biden administration would eliminate the exemption for most small refineries in the United States.
The rail company agreed to pay $140,000 as part of a settlement stemming from a 2019 train derailment that led to a fuel spill.
A U.S. District Judge in Montana has paused a rushed attempt by the Trump administration to restrict the science used by the EPA to make public health decisions.
Established under the Obama administration, the Clean Power Plan regulated greenhouse gas emissions from power plants, the nation’s second-largest source of planet-warming gas. But in 2019, Trump’s Environmental Protection Agency replaced this plan with a new rule designed to protect the coal industry while backing away from emissions reductions. Whereas the Clean Power Plan was expected to reduce emissions by about 30% by 2030, EPA projections suggest the replacement rule might reduce carbon dioxide emissions by 0.7%, or possibly not at all.
While the recent wildfires in Western states have introduced new concerns about air quality, the United States has made huge strides in the reduction of air pollution in recent decades.
The Environmental Protection Agency will allow the state to take the lead in regulating injection wells used to store carbon dioxide, a move seen by many as a major step forward in advancing carbon capture and sequestration research.
Gov. Mark Gordon hailed the study, which drew criticism from PacifiCorp.
The final rules will likely reverse Obama-era air quality regulations that attempted to stop methane and other pollutants from seeping into the atmosphere and compromising public health.
The U.S. Environmental Protection Agency is arming consumers with a list of disinfectants that people can use to protect themselves from the novel coronavirus.
BILLINGS, Mont. — The Trump administration unlawfully excluded millions of tons of some of the most dangerous materials in public use from a s…