Earth's Climate: Back to the Future

This is part of: Changing Planet: Past, Present, Future

Summary

Earth has been both cooler and warmer in the past, but the change is usually gradual. The current rate of carbon dioxide increase is unprecedented in human history, and solutions to mitigate its effect on global warming are challenging to implement.

Lecture: 
(Duration: 01 h 27 min 59 sec)
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