ATOC in the News

While classifying El Niño and La Niña is relatively straightforward, El Niño events can be broadly classified into two types: central Pacific (CP) and eastern Pacific (EP).

Brian Toon awarded 2022 Global Peace and Health Award in recognition of his landmark research on nuclear winter and nuclear famine, from International Physicians for the prevention of Nuclear War and Greater Boston Physicians for Social Responsibility.

Changes in ocean heat content (OHC) provide a measure of ocean warming, with impacts on the Earth system.

Low-lying island nations like Indonesia are vulnerable to sea level Height EXtremes (HEXs). When compounded by marine heatwaves, HEXs have larger ecological and societal impact.

We use 5 large ensembles to show that a positive PDO enhances winter and spring El Niño temperature and precipitation teleconnections and diminishes La Niña teleconnections over North America.

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

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.

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.

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

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).