Skip to main content
2 votes

Is the atmospheric composition still changing naturally?

Yes the atmosphere is always in mild flux, humans are just changing it MUCH more severely than it does naturally. the atmosphere even changes from season to season, that is the little up and down on ...
John's user avatar
  • 6,966
1 vote

Before the Great Oxygenation Event, where was the oxygen?

Someone (I've lost track of whom. Tl;dr.) is seriously underestimating the amount of reduced carbon in sediments. Having examined (and logged, and submitted to oil companies and government, hundreds ...
Rockdoctor's user avatar

Only top scored, non community-wiki answers of a minimum length are eligible