The industry hopes Wyoming's coal bonanza lasts another 100 years. But mining's peaks and valleys have never been entirely in its control.
A map of the West's electric grid and graphs of weather related disturbances, the balance between regional systems, and the impact of geographic smoothing on renewable energy.
The state’s Parks and Wildlife department is studying how the big cats live in the state’s urbanized Front Range in hopes of helping people coexist with them.
The billionaire has stakes in everything from Western art, railroads and petroleum to renewable energy, national parks, stadiums and Justin Bieber.
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