We’re not the first organisms to alter the atmosphere and cause a mass extinction. The first ones were cyanobacteria and the gas they released was oxygen. They caused
a decrease in the size of the biosphere of >80%
We’re descended from the survivors that adapted to a high-oxygen environment but to this day there are many microorganisms that die if exposed to even small amounts of oxygen.
We’re not the first organisms to alter the atmosphere and cause a mass extinction. The first ones were cyanobacteria and the gas they released was oxygen. They caused
We’re descended from the survivors that adapted to a high-oxygen environment but to this day there are many microorganisms that die if exposed to even small amounts of oxygen.