State of the Planet

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Pod of the Planet Episode 17: Mapping Out a Vaccination Strategy in Nigeria

Pod of the Planet · 17. Mapping Out a Vaccination Strategy in Nigeria

COVID-19 vaccination campaigns in many parts of the world have highlighted the urgent need for accurate spatial data, which has led governments and international development institutions to seek out reliable sources of such information to inform their COVID-19 interventions. A recent New York Times article spotlights the GRID3 program, which works with countries to generate, validate, and use geospatial data on population, settlements, infrastructure, and boundaries. Program partners include Columbia’s University’s Center for International Earth Science Information Network (CIESIN), the United Nations Population Fund, WorldPop at the University of Southampton, and the Flowminder Foundation.

Our podcast this week features a conversation between GRID3 communications officer Chisimdi Onwuteaka, and Nazir Halliru, who is now the country manager for GRID3 Nigeria. Halliru describes how GRID3 is producing and distributing paper-based maps — featuring data on vaccination sites, population, comorbidities risk, and settlement names — to support Nigeria’s COVID-19 vaccination planning and other development interventions.

You can find Pod of the Planet wherever you listen to podcasts, on Apple iTunesSpotifySoundcloudiHeartRadio and Stitcher.

For more information about this work, make sure to check out this news story and video. To explore and download GRID3 data, visit the GRID3 Data Hub.

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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

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