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State environmental regulators have denied a petition to list the Big Hole River as impaired. Water conservation groups worry this will continue to harm the river, and its aquatic life.
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Legislators have voted forward bills on property tax relief, Medicaid expansion, judicial oversight and more.
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The state Department of Environmental Quality is considering whether a more intensive effort is needed to clean up arsenic contamination at Arrowstone Park in Deer Lodge.
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A landmark Montana Supreme Court decision last year struck down laws passed by Republicans that would have changed Montana's bedrock environmental policy. Now, GOP lawmakers have introduced a suite of bills to undo the court's ruling.
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Gov. Gianforte names new Department of Agriculture director. Montana's DEQ to develop emissions reduction roadmap
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The Montana Supreme Court upheld the water use permit for a controversial proposal for a copper mine near the Smith River. The mine is now fully permitted to be built.
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The Montana Supreme Court Friday affirmed a lower court ruling finding that state environmental regulators failed to assess the greenhouse gas emissions associated with a fossil fuel power plant.
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State environmental regulators are expanding their ability to measure air quality, particularly in rural communities. The latest addition to their network is a permanent monitor in Glasgow.
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State environmental regulators have proposed changes to how they assess pollutants that can kill aquatic species in rivers and streams. Environmental groups worry the methods aren’t scientifically sound.
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Schools kept students inside for recess and athletics Monday as a thick blanket of smoke smothered western and central Montana. New research aims to better understand air quality inside schools.