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As U.S. markets and policies move away from fossil fuels and toward renewables like wind and solar, a new ranking of the nation’s "greenest" states has only three Mountain West states cracking the top 25.

Secretary of the Interior Deb Haaland announced plans last week to accelerate solar development on public lands in the Mountain West. The efforts build on the Biden administration’s goal to support more renewable energy projects.

A new paper out of the University of Wyoming projects the economic potential of wind power in the state, highlighting the huge opportunities and challenges unique to Western states amid the growing demand for renewable energy.

In Las Vegas, Interior Secretary Deb Haaland on Tuesday announced new efforts to facilitate more renewable energy development, including cutting by 50% rent and fees charged for wind and solar projects on public lands.

Emerging advances in renewable technologies could help extend the operating life of aging oil wells and help address Colorado’s orphan well problem.

The water levels behind the Colorado River’s biggest dams are fast-approaching or already at record lows. The historic 21-year megadrought that is squeezing some Western states’ water supplies will also likely start showing up in energy bills, because those dams can’t produce as much electricity.

Colorado lawmakers passed a series of bills this year addressing how buildings contribute to the state's overall greenhouse gas emissions. One piece of that legislation, sponsored by Democratic state Senate majority leader Steve Fenberg, is meant to encourage Coloradans to ditch their fuel-burning furnaces and water heaters in favor of electric heat pumps.

Shifting political and economic winds are forcing many in the state’s oil and gas industry to reckon with their future career prospects.

President-elect Joe Biden wants to move the U.S. away from fossil fuel development, but he will face some challenges.

Cities, states, businesses and electric utilities are setting ambitious goals to cut greenhouse gas emissions. But it's not clear exactly how they'll do that or whether it will actually work.