Red Earth—The Great Oxidation Event
Lecture no. 30 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
By 2.4 billion years ago, Earth’s atmosphere contained a small but significant amount of molecular oxygen. Where did it come from? Explore this dramatic development, in which cells evolved to gain energy from the sun while producing oxygen as a waste product.