extinction2
-
Some Do Not Like It Hot
The Great Dying, The Big One — The Permo-Triassic! (In a time machine, not sure if that’s where I’d aim …) As extinctions go, this one’s a blockbuster classic, When most of Earth’s species dropped out of the game.
-
Extinction Exposed – The Giant Panda
Captive breeding and species protection are helping the panda recover, but fewer than two thousand still remain.
-
Extinction Exposed – The Sea Otter
Despite being a keystone species in important ecosystems that span the northern and eastern North Pacific Ocean, sea otters have historically had a complex and sometimes troubling relationship with humans.
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
