Carbon dioxide is the current villain in the story of atmospheric gases, but billions of years ago the bad guy was our friend oxygen. Although it's weird to think that we wouldn't be here today were it not for a global catastrophe, the Great Oxygenation Event actually wiped out most life on Earth at the time. This ramped up about 2.5 billion years ago, but now scientists have discovered signs of the oldest known "oxygen oasis" in South Africa, showing that the process started almost half a billion years earlier.
.. Continue Reading Oldest "oxygen oasis" marks Earth's first breath of fresh airCategory: Environment
Tags: Related Articles:
- New malaria vaccine aces clinical trials
- Did human ancestors split from chimps in Europe, not Africa?
- "Social AI" lets Mario and Luigi learn how to save the princess on their own
- Study finds that retina "language" changes with brightness
- 'Quantum tip' enables higher-resolution scanning microscopy
- Oldest micrometeorites ever found hold clues to Earth's ancient atmosphere
from New Atlas http://ift.tt/2mTlr8i
No comments:
Post a Comment