The presidential hopeful has acknowledged that the climate is changing, but has expressed skepticism that it is being caused solely by humans.
Scientists from the University of Colorado and other institutions are working to pinpoint the source of a giant mass of methane hanging over the southwestern U.S., which a study found to be the country’s largest concentration of the greenhouse gas.
Researchers have found that methane emissions from local natural gas distribution systems across the U.S. have decreased in the past 20 years.
A campaign to get universities to stop investing in fossil fuels has come to energy-rich Colorado.
With the recent dip in oil prices, the Environmental Protection Agency wants the State Department to “revisit” how much of a toll the Keystone XL oil pipeline would have on global warming.
Conservative distrust of Pope Francis, which has been building in the U.S. throughout his pontificate, is reaching a boiling point over his plan to urge action on climate change.
The plan to cut emissions by 30 percent by 2030 attracted crowds to regional hearings this summer, including Denver.
The head of the Environmental Protection Agency promoted proposed clean power plant rules to Western governors Tuesday.
A Boulder man just finished his third trip to the North Pole un-aided and unsupported. The trip was not only incredibly dangerous but might be the last of its kind.
Colorado’s ski resorts are taking the offensive in ensuring the multi-billion-dollar-a-year industry isn’t hurt by recreational marijuana stores that are set to open at about the same time many families begin planning their winter vacations.