That line jumped out to me as well. It's simplistic extrapolation of data without any physical basis. We're at 430ppm now. 500ppm by 2032 would be a climate dis

That line jumped out to me as well. It's simplistic extrapolation of data without any physical basis. We're at 430ppm now. 500ppm by 2032 would be a climate disaster. 1200ppm would be a mass extinction. But hey, good news, we'll probably only need to deal with a disaster. Getting to 1200ppm would mean burning thousands of gigatons of carbon in the next 7 years. We currently burn 12 GtC annual - we'd need to increase our fossil fuel consumption by 30x starting today. I'm not sure we even have the petroleum and coal reserves or infrastructure to do that, even if we wanted to. Unless there's some yet-unknown natural feedback loop waiting to release massive amounts of carbon, 1200ppm by 2032 isn't possible.