Life's Impact on Earth's Evolution

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Exploration of how life, particularly cyanobacteria, has shaped Earth's evolution through oxygenation and co-evolution. The chapter also examines the planetary thermostat and the symbiotic relationship between life and climate regulation on Earth.

A cell is alive. So is a leaf and so is a tree. But what about the forest they’re a part of? Is that forest alive? And what about the planet that forest grows on? Is Earth alive? Science writer Ferris Jabr says: Yes.

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