What Would Earth Be Like Without Life?

Explore a thought-provoking 21-minute video that delves into the hypothetical scenario of Earth without life. Discover how our planet's geology, atmosphere, and overall appearance would differ in the absence of living organisms. Learn about James Lovelock's Gaia hypothesis and the Daisy World model, which illustrate the intricate relationship between life and Earth's systems. Examine the crucial role of carbon dioxide in shaping our planet's climate and how life has influenced its concentration over time. Gain insights into the complex interplay between biological processes and Earth's physical characteristics, and reflect on the profound impact life has had on shaping our world.

Introduction
Life in the Cosmos
Earth Without Life
James Lovelock
Daisy World
Carbon Dioxide
Conclusion