Dan Westervelt
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Climate School Experts on the Los Angeles Fires: Causes, Impacts and Recovery
As California battles devastating wildfires, our researchers are helping to make sense of how they became so destructive, and what’s needed for recovery.
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Tackling Severe Air Pollution in Africa
An atmospheric scientist has been working to measure and mitigate a longtime health crisis afflicting much of the continent.
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How Wildfire Smoke Can Travel Thousands of Miles, and How to Protect Yourself
Columbia Climate School experts comment on the dangerous air pollution from Canadian wildfires.

The first Earth Day in 1970 ignited a movement to stop polluting our planet. This Earth Month, join us in our commitment to realizing a just and sustainable future for our planet. Visit our Earth Day website for ideas, resources, and inspiration.