Coal

State environmental regulators Friday approved new standards for a heavy metal in Lake Koocanusa and the Kootenai River.

NorthWestern Energy, Montana’s largest utility, will assume the entire cost of replacement power for roughly three months in 2018 when part of the Colstrip Steam Electric Station was taken offline after it violated federal clean air laws.

The operator of the Colstrip coal-fired power plant submitted its cleanup plan for parts of the plant it shuttered early this year.

The expansion of a British Columbia coal mine upstream of Lake Koocanusa and the Kootenai River will undergo review from the federal Canadian government...

A coal mining company that works in Montana filed a request in May for a judicial review of a recently changed rule for power plant air emissions…

A federal judge in Montana heard arguments May 13 in a case where environmental advocacy groups say coal leasing under the Trump Administration breaks…

State utility regulators have agreed with NorthWestern Energy’s request to block details on its new coal supply contract from becoming public — at least...

A council appointed by Gov. Steve Bullock released a list of recommendations for the state to address climate change and reduce greenhouse gases Feb 11.…

The state’s largest utility filed its intent to purchase an added share of the Colstrip coal-fired power plant in eastern Montana on…

Montana and Wyoming are asking the U.S. Supreme Court to hear a challenge to Washington state’s rejection of a proposed coal export terminal.On Jan. 21…