What 66 Million Years of Climate History Tells Us About Our Future | Bärbel Hönisch

What can 66 million years of Earth’s history teach us about the future? Bärbel Hönisch is a Professor of Earth and Environmental Sciences at Columbia University and one of the world’s leading researchers in paleoceanography. In this conversation, we explore what ancient oceans reveal about atmospheric CO₂ and climate, why the speed of modern climate change matters, what the geological record can teach us about our future, and whether humanity has reasons to be optimistic.