Ice Age2
-
Answer to What Ended Last Ice Age May Be Blowing in the Wind
A Chain of Past Natural Events May Hold Lessons for the Future
-
Wind Shifts May Stir CO2 From Antarctic Depths
Releases May Have Speeded End of Last Ice Age—And Could Act Again
-
Climate Swings Have Brought Great CO2 Pulses Up From the Deep Sea
A study released on May 11, 2007 provides some of the first solid evidence that warming-induced changes in ocean circulation at the end of the last Ice Age caused vast quantities of ancient carbon dioxide to belch from the deep sea into the atmosphere. Scientists believe the carbon dioxide (CO2) releases helped propel the world…
-
New Study of Glacial Retreat Shows that Much of the World Emerged from Last Ice Age at Nearly the Same Time
The end of the recurring, 100,000-year glacial cycles is one of the most prominent and readily identifiable features in records of the Earth’s recent climate history. Yet one of the most puzzling questions in climate science has been why different parts of the world, most notably Greenland, appear to have warmed at different times and…
-
Researchers Confirm Role of Massive Flood in Climate Change
Flood of fresh water disrupted ocean circulation and Earth’s climate; simulations validated by climate proxy record
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