[stylin19a]

scratchin my head...from the summary...

The global atmospheric carbon dioxide (CO2) concentration has now passed 400 parts per million (ppm), a level that last occurred about 3 million years ago,
when both global average temperature and sea level were significantly higher than today.

so C02 can't be the cause of the supposed temp. rise ?

[Bob434]

CO2 was at more than 800 ppm way back when- life survived just fine-

Man’s contribution of CO2 to the atmosphere = just 0.00136% of the atmosphere-

Can someone please explain how just 0.00136% of the atmosphere can trap enough heat to warm the globe? (hint- it’s impossible)

[Swordmaker]

when both global average temperature and sea level were significantly higher than today.

Let me remind them: “Correlation does not equate to causation.”