sorry- that is what I meant- not 800- good catch-
Some state it was even higher- 5000 ppm
“Can you imagine the tremendous “acidification of oceans”? Yet there surely was plenty of life in the oceans.
And the temperatures surely were not 5 or 20 times higher. Because in that case around the equator they would have exceeded the boiling point of water. The temperatures were just 3°C higher than now “
From that site- life survived- nothing boiled to death- life flourished-