CO2 was at that level with an entire planet covered in a healthy ecosystem. If that happened now, we would probably witness the entire global collapse of the ec

CO2 was at that level with an entire planet covered in a healthy ecosystem. If that happened now, we would probably witness the entire global collapse of the ecology. It took hundreds of millions of years to cool down that much, and we’ve turned it back up in a century. Animals (humans included) do not have the time to adapt. Have you ever been in a stuffy meeting where brain fog sets in or you start to feel tired? That’s around 2k ppm where that sets in. Humans don’t like that much co2. No offense, but your argument doesn’t seem thought through.