Scientists have a new idea for how Earth got its oxygen: It’s because the planet slowed down and days got longer.
A study published Monday proposes and puts to the test the theory that longer, continuous daylight kick-started weird bacteria into producing lots of oxygen, making most of life as we know it possible.
Great Lakes Now
https://www.greatlakesnow.org/2021/08/ap-theory-earth-days-oxygen-growth/