Petai - when the CO2 concentration of the earth was at 800ppm, as Dave mentions, it was all hunky dory - the dinosaur parents were all down at the beach with their baby and teen dinosaurs enjoying all the extra heat and sun and drinking dinosaur Pina Coladas and when we get there (800 ppm) we can do the same and live happily ever after as well. Its all just natural climate change after all. CO2 is good for life whether you're a dinosaur or a human. The more CO2 the better. Bring it on. I can't wait!
