sea level rise12
-
New Study Lowers Estimate of Ancient Sea-Level Rise
But Projections for Increase Today Still Loom Large
-

Watch an Antarctic Iceberg in the Making
What does a glacier about to spawn an iceberg the size of New York City look like? A new animation from NASA flies you through the 19-mile crack that is slowly tearing Antarctica’s Pine Island Glacier apart.
-
New York State May Soon Suffer Outsize Effects from Climate, Says Report
From Farms to Subways, Many Sectors Could Be Affected
-
Scientists Predict Faster Retreat for Antarctica’s Thwaites Glacier
Study Identifies Underwater Ridge Critical to Future Flow
-

Climate Scientist Studies Ancient Shorelines
The seas are rising, as they have during past periods of warming in earth’s history. Estimates of how high they will go in the next few thousand years range from five meters, putting greater Miami underwater, to 40 meters, wiping most of Florida off the map. “The range of estimates is huge to the point…
-
Ocean Currents Speed Melting of Antarctic Ice
A Major Glacier is Undermined From Below
-
Cities Lead on Climate Problems, and Solutions
New Report Analyzes Urban Areas Across the World
-
No Longer Anchored, Antarctic Ice Stream Surges to Sea
Under-Ice Sub Finds Ridge That May Have Held Back Pine Island Glacier
-
Leaders of Distinction: The Lamont Research Professor
Robin Bell will soon become one of the most senior Observatory researchers to receive the title of Lamont Research Professor, which elevates the status of Lamont’s distinguished researchers to something akin to tenure in the University setting, and which will support Lamont’s recruitment efforts of such dedicated educator/researchers well into the future.

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