Seems plausible at least, and you are of course correct about the world; the CO2 level of the atmosphere when I was born was well below 400 and we'll not see th

Seems plausible at least, and you are of course correct about the world; the CO2 level of the atmosphere when I was born was well below 400 and we'll not see that again as long as I live. That's what I tell those who respond viscerally to the idea of messing about with the atmosphere purposefully - we are already altering it regardless.