Orbits and Ice Ages: The History of Climate

A planetary scientist explains Earth’s climate history from an astrophysical and geological perspective.

Climate change has become a major political issue, but few understand how climate has changed in the past and the forces that drive climate. Most people don’t know that fifty million years ago there were breadfruit trees and crocodiles on the shores of the Arctic Ocean, or that 18,000 years ago there was a mile-thick glacier on Manhattan and a continuous belt of winter sea ice extending south to Cape Hatteras.

The History of Climate provides context of our current climate debate and fundamental insight how the climate works.