Lecture 11: The History of the Earth

Lecture 11: The History of the Earth

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Lecture 12: Climate Regulation and Climate Change

What are the main mechanisms of climate regulation and climate change that have operated through Earth's history? The Earth's climate is regulated by a Carbon Dioxide thermostat that is the interaction between the Greenhouse Effect and the CO2 Cycle. I describe the CO2 cycle and ...  Show more

Lecture 13: What is Life?

How do we define life? This lecture reviews the six basic criteria for living systems described by biologists: order, reproduction, growth and development, energy utilization, reaction to environment, and evolution that characterize life. The last third of the lecture is an admit ...  Show more

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