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  • Earth's Climate: Back to the Future

    Earth's Climate: Back to the Future

    Lecture

    (1 hr 27 min 59 sec) 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.

  • Changing Planet: Past, Present, Future

    Changing Planet: Past, Present, Future

    Lecture

    Has Earth changed over deep time? How did Earth shape life and life shape Earth? What does Earth's climate in the distant past tell us about the future?