Quote:
Originally Posted by skarra
Now you're mixing the heating problem with the gas problem I'm highlighting.
Early homo sapiens have NEVER existed with CO2 levels at the 2500 PPM level, and the end of this century is nowhere long enough for us to evolve to be able to. You have to go further back than about 16 million years ago to see where it was higher than 1,000, but then it was dinosaurs that had to deal with it and not humans. In the 30,000 years we've been around, the levels were much lower than today.
You can do your own research to find out what effect CO2 levels has on us. But Elon got it right - it is dangerous to our health and we're not even talking about it. The higher the level, the less our lungs are able to remove it from our blood and you end up with the effects Elon highlighted.
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The charts show an increase of about 100ppm in 60 years, so assuming you're correct about the problems with CO2, your time frame is a little off to reach 1000ppm. At the rate on the charts, you're looking at 360 years, or close to the end of the 2300's, not the 2000's. Also, to those mentioning carbon monoxide poisoning, that is CO, not CO2--there's quite a difference.