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Colloquia and Special Seminars

The department and CIRA jointly host weekly colloquia held Thursday afternoons in ATS 101 (the large classroom of the main building). Refreshments are served at 2:45 p.m. in the community space, and the presentation begins at 3 p.m. The department hosts other seminars that also are announced on the colloquium mailing list. You can subscribe to the list by sending a message to

If you would like to invite a speaker, please first read the colloquium guide for hosts and check this page for available dates. Contact Michael Bell ( or Christine Chiu ( with questions. The faculty member hosting the speaker arranges the speaker's visit schedule.

Upcoming Colloquia and Seminars

April 22, 2021 at 3 p.m. Title to be announced
Carolyn Brinkworth from NCAR
Hosted by James W. Hurrell
April 29, 2021 at 3 p.m. “How much solar radiation does atmospheric mineral dust absorb, and how much do climate models simulate?”
Adeyemi Adebiyi from University of California, Los Angeles
Hosted by Sonia Kreidenweis and Paul DeMott
May 6, 2021 at 3 p.m. Reflecting Sunlight: Solar Geoengineering to Cool a Warming Planet
James W. Hurrell from Colorado State University

Past Colloquia and Seminars

2021 Spring Fall
2020 Spring Fall
2019 Spring Fall
2018 Spring Fall
2017 Spring Fall
2016 Spring Fall
2015 Spring Fall
2014 Spring Fall
2013 Spring Fall
2012 Spring Fall
2011 Spring Fall
2010 Spring Fall
2009 Spring Fall
2008 Spring Fall
2007 Spring Fall