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The Energy Department finalized rules that will ban fossil fuels in new and remodeled federal buildings by 2030.
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Gov. Kevin Stitt vetoed a bill that would have added two invasive weeds to Oklahoma's Noxious Weed Law.
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After studying various species earlier this month, some scientists now say they understand the origin of animal behavior during solar eclipses.
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Fifteen years after the EPA said greenhouse gasses are a danger to public health, the agency finalized rules to limit climate-warming pollution from existing coal and new gas power plants.
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California's state board that regulates water recently voted to impose fees for farmers using groundwater in one of the state's largest farming areas.
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The talks in Canada are not going well,and scientists and civil society groups say the U.S. is largely to blame.
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Oklahoma Natural Gas is asking the state Corporation Commission to approve a rate hike that would cost the average utility customer about $2.50 more than they currently pay monthly.
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Climate change is making it harder to meet clean air goals, says the 25th annual State of the Air report from the American Lung Association.
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Critics say the U.S. has been unwilling to push for measures in a global agreement that would drive big cuts in plastic waste.
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Released on Earth Day, the federal government's new "HeatRisk" tool can help people assess when heat goes from uncomfortable to dangerous.