Indonesia3
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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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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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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…
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Reaping Ice From a High Indonesian Peak
After years of preparation, scientists are about to ascend Indonesia’s 4,884-meter (16,000-foot) Puncak Jaya, earth’s highest mountain between the Andes and the Himalayas, to drill samples of some of the last, fast-dwindling glacial ice in the tropics. From deep cores representing centuries of accumulation, they hope to extract clues to past cyclic swings in the…
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Water Pyramid
A Dutch company has created the Water Pyramid to help create safe, clean drinking water in tropical and developing countries. While traditional reverse osmosis systems are expensive to build and use a considerable amount of energy, the Water Pyramid uses the sun as its primary energy source and has low operational and maintenance costs. The…
COP31, the 2026 United Nations Climate Change Conference, aims to advance dialogue, strengthen consensus, and accelerate climate action on a global scale. From November 9–20, 2026 in Antalya, Türkiye, heads of state, ministers, scientists, business leaders, and civil society will gather to advance efforts in emission targets, climate finance, and adaptation and resilience. Once again, our experts, students, and global thought leaders from Columbia Climate School and across Columbia University are contributing to key events, sharing insights, and helping shape the dialogue toward ambitious, science-based solutions. Learn More