A Boulder developer will use track energy use and charge tenants accordingly. That's designed to encourage lower use.
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Since 2014, the state's regulator has handed out an unprecedented $12,693,534 in penalties.
The 2017 Solar Decathlon pits student teams from around the world, showcasing innovative solar home technology. It's on display near DIA.
The US and Mexico signed a new agreement to share water from the Colorado River, and improve conservation in Mexico, particularly on farms.
It's pretty typical for Colorado to see its first, notable snowfall the first weeks in October.
More than 400 of Colorado's oil and gas pipelines within 1,000 feet of occupied buildings failed inspections. The location of these pipelines is unknown at this time.
The agreement includes spending millions of dollars on conservation projects and drawing up plans to deal with drought and climate change.
The Ursa Resources plan involves drilling 55 wells from two pads in the unincorporated Garfield County community of several thousand residents.
Researchers including one from from Colorado's Climate Accountability Institute find that 90 fossil fuel companies have directly contributed to sea level rise and warming temperatures.
The EPA is installing a barrier at the mine outside Silverton to prevent another spill like the one in 2015 that sent 3 million gallons of toxic water into rivers.
Saving African wild cats, elephants and other species from extinction takes serious police work. That's where the National Wildlife Property Repository comes in.
Millions of people rely on crops and cattle that feed off the aquifer. As streams dry up, conservation becomes key.
Colorado's oil and gas regulators have released an outline of possible new standards for designing, testing and permanently shutting down flow lines.
Scientists say the ozone hole over Antarctica is no longer growing, the expectation is that it will take decades to recover.
About 6.3 billion dead trees are still standing in 11 Western states, up from 5.8 billion five years ago, according to U.S. Forest Service statistics.