In my post on how similar or dissimilar life might be if evolution started over, I observed that much of the environment that life operates within is itself generated by other life. It turns out that goes deeper than I imagined. I knew that things like oxygenated atmosphere and soil were products of life, but it turns … Continue reading How life transformed the planet – Robert Hazen – Aeon
Tag: Earth Science
Perspectives on deep time
The universe is roughly 13.8 billions years old. The universe was 66% of its current age by the time the Sun and Earth formed. Life appears to have begun on Earth when it was around 10% of its current age of around 4.5 billion years. The Earth was 85% of its current age before the … Continue reading Perspectives on deep time
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