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5 votes

What caused the Carbon Dioxide Variations observed in the 800,000-year polar ice record?

Six plus years after the fact, I find the accepted answer to be a bit insufficient. With that, but what specifically caused the CO2 to fluctuate? Notice in the two graphs how the temperature drop ...
David Hammen's user avatar
  • 23.7k
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

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