How and Why Earth Went From Purple to Green - Twice

How and Why Earth Went From Purple to Green - Twice

GEO GIRL via YouTube Direct link

Life on Early Earth

1 of 12

1 of 12

Life on Early Earth

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How and Why Earth Went From Purple to Green - Twice

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  1. 1 Life on Early Earth
  2. 2 Photosynthesis on Early Earth
  3. 3 Contrasting Colors of Photopigments
  4. 4 Purple Earth Hypothesis
  5. 5 Phototrophy vs Photosynthesis
  6. 6 Purple vs Green Phototrophs
  7. 7 From Purple To Green Earth
  8. 8 Evidence for Purple Earth
  9. 9 Rise of Photosynthesis
  10. 10 Second Purple Earth?
  11. 11 Transition to Green Earth
  12. 12 Using Pigments to Find Aliens?

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