sea ice

Modeled Interannual Variability of Arctic Sea Ice Cover is within Observational Uncertainty

Oct. 20, 2022

Internal variability is the dominant cause of projection uncertainty of Arctic sea ice in the short and medium term.


El Niño Impacts in North America Depend Partly on North Pacific Ocean

Oct. 20, 2022

When winds relax and water temperatures rise in the central and eastern tropical Pacific Ocean during an El Niño, more rain tends to fall over the southwestern United States and northern Mexico.


Ocean currents have sheltered the Galápagos from global warming. Now it’s time to protect them

Oct. 20, 2022

While most of the world’s oceans are warming due to climate change, a new CU Boulder study explains how the waters around the Galápagos Islands are staying cool and getting colder.


Following Fiona and Ian, what’s next for hurricanes in 2022?

Oct. 7, 2022

CU Boulder Today spoke with Karnauskas about hurricane seasons, Hurricane Ian and what the rest of the 2022 season might look like.


Evaluation of Polar Winter Mesopause Wind in WACCMX+DART

Oct. 3, 2022

This work evaluates zonal winds in both hemispheres near the polar winter mesopause in the Whole Atmosphere Community Climate Model (WACCM) with thermosphere-ionosphere eXtension combined with data assimilation using the Data Assimilation Research Testbed (DART) (WACCMX+DART).


Anthropogenic aerosol and cryosphere changes drive Earth’s strong but transient clear-sky hemispheric albedo asymmetry

Oct. 3, 2022

A striking feature of the Earth system is that the Northern and Southern Hemispheres reflect identical amounts of sunlight.


Cloud adjustments from large-scale smoke–circulation interactions strongly modulate the southeastern Atlantic stratocumulus-to-cumulus transition

Oct. 3, 2022

Smoke from southern Africa blankets the southeastern Atlantic Ocean from June to October, producing strong and competing aerosol radiative effects.

reu students

CU Boulder researchers stoke a passion for science in tomorrow’s scholars

Aug. 23, 2022

Undergrad students from minority-serving institutions get hands-on research experience and mentoring from faculty and grad students

weiqing han

Weiqing Han named AMS Fellow

Aug. 22, 2022

Please join us in congratulating Professor Weiqing Han in being named an AMS Fellow.

mushroom cloud

Nuclear war would cause a global famine and kill billions, study finds

Aug. 16, 2022

More than 5 billion people would die of hunger following a full-scale nuclear war between the U.S. and Russia, according to a global study that estimates post-conflict crop production led by Rutgers University and CU Boulder climate scientists.