Koovie
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I beg to differ. CO2 level 5 million years ago was about 415 ppm. Temperature back then was much hotter.
Yes. So? The climate does not change as fast as day and night. It takes time. And we can already measure that.
The time you are talking about, the Pliocene is often used to predict what will happen if CO2 in the future:
During the Pliocene sea level was over 20 m higher than today! Global temperature was around 3°C warmer and the ice covering substantially lower than today.
Now again, whether thats good or bad depends on the PoV. But I guess your brain can make the necessary illustrations on such a world. Just remember: Most of humanity lives at the shores, billions rely on glacial waters, desertification will mean that living space gets even more cramped and endangered etc etc etc.
Humans have never experiences such a world because there were no humans back then!
But remember, the hotter, the more CO2 in the air as the ocean out gasses. Think of the CO2 in your coke bottle. When you open the bottle, the coke becomes warmer and CO2 blows right out of the bottle. The higher the temperature, the less CO2 in the ocean, the less ocean acid level, the more CO2 in the air.
Ok. Thanks for the insight into the equilibrium distribution of CO2 between water and the atmosphere. Please dont forget next time to tell us what exactly you are trying to convey with that.
The optimum CO2 level should be about 1000 ppm. At this level, animals are not harmed and at the same time plant growth is significantly boosted.
1000 ppm?! Do you realize that there would be almost no ice on the Earth? That the sea level would be so high that most habitats of humans would be not habitable at all?
Seriously WTF
You just lost your last drop of credibility with that....