Climate & Environment
Sea ice over the Arctic Ocean likely reached its maximum extent for the year on March 17, the second lowest in the 39-year satellite record.
A new map of the Northern Hemisphere shows how and why different areas receive snow or rain at near-freezing temperatures.
Airborne soot produced by wildfires and fossil-fuel combustion and transported to the McMurdo Dry Valleys of Antarctica contains levels of black carbon too low to contribute significantly to the melting of local glaciers.
Paying rural villagers to cut down fewer trees boosts conservation not only while the payments are being made but even after they’re discontinued, according to a new CU Boulder study.
A new study sheds light on the formation of Colorado's distinctive hogback ridges, many of which can be seen in Boulder's foothills.
Drier summers and a decline in average snowpack over the past 40 years have severely hampered the establishment of spruce and fir trees in Colorado's Front Range.
Increased temperatures caused localized extinction of a common Rocky Mountain flowering plant, a result that could serve as a herald of future population declines.
Chemical products like household cleaners, pesticides, paints and perfumes now rival motor vehicle emissions as the top source of urban air pollution, according to a surprising NOAA-led study.
Current sea level rise projections assume a constant rate, but CIRES fellow Steve Nerem found the rate is actually accelerating.
The first-ever molecular evidence of obligate symbiosis in lichens could shed new light on how and why some multicellular organisms consolidate their genomes in order to co-exist.