Boulder flatirons

Untangling methane emissions

March 22, 2019

Using cutting-edge instrumentation, CIRES researchers are able to track and differentiate sources of methane, a greenhouse gas and air pollutant.

women farmers in tanzania

When more women are decision-makers, the environment wins

March 21, 2019

When more women are involved in group decisions about how to manage land, the group conserves more—particularly when offered financial incentives, new research shows.

An alpine landscape in Colorado.

Alpine tundra releases long-frozen CO2

March 21, 2019

Thawing permafrost in high-altitude mountain ecosystems may be a stealthy, underexplored contributor to atmospheric carbon dioxide emissions.

NASA sea ice

Arctic sea ice reaches maximum extent for 2019

March 20, 2019

Arctic sea ice likely reached its maximum extent for the year at 5.71 million square miles, effectively tied for seventh lowest in the 40-year satellite record.


Marine organisms face fatal horizon in Southern Ocean

March 11, 2019

Marine microorganisms in the Southern Ocean may find themselves in a deadly vise grip by century’s end as ocean acidification creates a shallower horizon for life.

sea ice

Arctic change has widespread impacts

March 7, 2019

As the Arctic warms faster than the rest of the globe, permafrost, land ice and sea ice are disappearing at unprecedented rates.

An artist's imagining of a small mammal from the Late Cretaceous

Ancient ‘night mouse’ faced four months of winter darkness

Feb. 18, 2019

Paleontologists working on a steep river bank in Alaska have discovered fossil evidence of the northernmost marsupial known to science.

cooking flame

Your home is a hidden source of air pollution

Feb. 17, 2019

Cooking, cleaning and other routine household activities generate significant levels of chemicals inside the average home, leading to indoor air quality levels on par with a polluted major city.

An image of a tree in a field depicting climate change and drought.

Reticent experts still have climate advocacy choices, scholars say

Feb. 13, 2019

Scientists can be climate advocates without tarring reputations, CU Boulder researchers contend.

Ice shelf breakup

Ice shelves buckle under weight of meltwater lakes

Feb. 13, 2019

CIRES scientists have directly observed an Antarctic ice shelf bending under the weight of ponding meltwater on top, a phenomenon that may have triggered the 2002 collapse of the Larsen B ice shelf.