Garima Raheja
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Women in Science: Air Quality and Climate Change Researcher Garima Raheja
In honor of International Day of Women and Girls in Science, we’re featuring Raheja, who researches machine learning methods for measuring air pollution in vulnerable communities across the world.
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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.
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2022 Climate News You Should Know
Climate School experts weigh in on the past year’s most noteworthy events and developments within their fields.
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First Long-term Air Pollution Monitoring in Togo Reveals Concerning Levels
A new study finds that annual air pollution levels in the city of Lomé are, on average, four to five times greater than recommended by the World Health Organization.

AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More
