Articles By Mark Jaffe
Tri-State, under pressure from its member co-ops to change or fall behind, is shifting to renewable energy
Giant power provider on the verge of deal with departing utility says it will shutter coal-fired plant in Nucla two years early as it retools carbon-emissions goals.
All’s not well that Gov. Jared Polis was hoping would end well with wells and nobody's happy.
All the plastics in the sea could literally outweigh the fish unless cast-off bottles and containers find a different, more valuable destination
Bold $500 million offer to replace 3 coal-powered plants with renewables, gas met by reluctance from Tri-State
Miami’s Guzman Energy already helped a New Mexico co-op leave Tri-State and says switching to renewable energy will cost less
Wonderbound veteran Sarah Tallman prepares for her last dance and her first steps into a new role
Revisions to six sets of rules and four bills in the statehouse, including one that enacts "social cost of carbon" standard, aim to reduce carbon emissions while protecting coal-plant workers from obsolescence
In an interview, the state’s new chief oil and gas regulator, Jeff Robbins, says Senate Bill 181 landed in the “sweet spot”
Colorado oil and gas overhaul tips power toward local government. How that power is used will vary widely.
Towns and cities along the I-25 corridor, where drilling is closest to suburban neighborhoods, likely will be first to test the waters
The measure would give local governments the ability to veto fracking and may give Anadarko Petroleum a monopoly when it comes to drilling rights on the Front Range