Snowball Earth and Hothouse Earth
Lecture no. 37 from the course: The Origin and Evolution of Earth: From the Big Bang to the Future of Human Existence
Taught by Professor Robert M. Hazen | 30 min | Categories: The Great Courses Plus Online Science Course
Some 750 million years ago, Earth entered a period of extreme climate instability, starting with a brutal ice age. Seek the explanation for almost 200 million years of back-and-forth swings between snowball and hothouse phases. Also probe the evidence that Earth completely froze over.