There have been times when grapes were grown in Yorkshire. There have been times when it was possible to walk quite safely across large swathes of the North Sea. These times were well before we ever reached a state of industrialisation. If you look over a period of millions of years the fluctuations in the planet's temperature are massive indeed. Granted, the projection of 10 degrees in 100 years is rather faster, but I still haven't seen much conclusive evidence of it. Given that we can't even accurately model cloud patterns, I don't think we've got much grounds for claiming we know much conclusively.

And at any rate, we will survive. As we said in the other thread about disasters, Humanity = win. There's not much that's going to stop us. So I'm not worried. And that's presuming Udsana's post isn't accurate, though I believe it has some merit.

Edit: Wait, wouldn't then removing the laws on air pollution be a way to slow this down quiet significantly so that we have longer to figure a real solution out? Put the ability to cool the planet back into place.