greenland sea ice cover

Ice-free Arctic summers could hinge on small climate warming range

April 2, 2018

When it comes to the probability of future ice-free summers in the Arctic, a small range of climate warming over the next century could make all the difference.Read more »
sea ice extent

Arctic sea ice maximum at second lowest in the satellite record

March 23, 2018

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.Read more »
Flatirons with snow

Rain or snow? Humidity, location can make all the difference

March 20, 2018

A new map of the Northern Hemisphere shows how and why different areas receive snow or rain at near-freezing temperatures.Read more »
McMurdo Dry Valleys

Airborne soot's effect on Antarctica's glaciers

March 16, 2018

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.Read more »
Deforestation in Madagascar

How cash can promote tropical forest conservation

March 13, 2018

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.Read more »
engelmann spruce at Pikie's Peak

Drier conditions could doom Colorado spruce and fir trees

Feb. 22, 2018

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.Read more »
Northern rock jasmine

Climate warming causes local extinction of Rocky Mountain wildflower species

Feb. 21, 2018

Increased temperatures caused localized extinction of a common Rocky Mountain flowering plant, a result that could serve as a herald of future population declines.Read more »
L.A. smog

Household cleaners are almost as dirty as cars

Feb. 15, 2018

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.Read more »
Photo of waves crashing in the ocean.

Sea level rise accelerating

Feb. 12, 2018

Current sea level rise projections assume a constant rate, but CIRES fellow Steve Nerem found the rate is actually accelerating.Read more »
Lichen

When it comes to genes, lichens embrace sharing economy

Feb. 8, 2018

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.Read more »

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