Climate267
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Needed: Ice Drills
We are staying at the high-elevation Grasberg gold and copper mine—not on top of Puncak Jaya—because some of our equipment has not arrived. We have 99 pieces out of the 106 we shipped, but unfortunately our ice drills are in the missing pieces, and we cannot do anything without those. We are working hard to…
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Scouting the Glacier
Team members are now actively scouting by foot on Puncak Jaya, looking for the best drill spots, travel routes and campsites. The man in red is Broxton Bird of Ohio State University. In brown, the appropriately named alpine veteran Keith Mountain of the University of Louisville. At bottom: team leaders Dwi Susanto and Lonnie Thompson give a…
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Climate and Public-Health Communities Train Together
For the third year in a row, public-health professionals and climate scientists from around the world are visiting Columbia University’s Lamont campus, where the International Research Institute for Climate and Society is based, to learn how to use climate information to make better decisions for health-care planning and disease prevention. They’re taking part in the…
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20th Century One of Driest for Northwest Africa in 900 Years
Ancient Trees Give Context to Recent Droughts
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Predicting Rainfall in Senegal and the Sahel
Last week Ousmane Ndiaye, a graduate student at DEES and a graduate research assistant at the IRI, gave his thesis defense to a packed house in Monell. The presentation, entitled “Predictability of the Sahel Climate: Seasonal Sahel Rainfall and Onset over Senegal,” considered issues of rainy-season predictability in Ndiaye’s home country. It also earned him…
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Moving Up a Melting Mountain
Four days ago, we flew into the lowland Papuan city of Timika, then moved up to Tembagapura, a town managed by the Freeport-McMoRan company, whose gold/copper mine near our glaciers is lending us logistical support. Tembagapura, at 1,900 meters (6,000 feet), was our first step in acclimatizing to high elevation. Now we have moved up…
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Heading for Thin Air
The project to core the glaciers of Puncak Jaya was officially launched today at a press conference in Jakarta, at the offices of the Indonesian Meteorology, Climatology and Geophysics Agency (BMKG). Agency director general Sri Woro B. Harijono hailed the project as “a milestone for climate study in Indonesia” that will produce important data for…
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Kudzu Harms Air, Not Just Ecosystems, Says Study
Invasive Vine Said to Add Ozone in Southeastern U.S.
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Our Race Against Time
Our team is planning to recover and analyze ice cores from glaciers on opposite sides of the tropical Pacific Ocean: Puncak Jaya in Papua-Indonesia (4,884 meters above mean sea level) and Nevado Haulcán, Peru (6,100 meters.). Puncak Jaya offers the only potential opportunity to acquire an ice core history from the western side of what…
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