kawathere are already uninhabitable places on earth lol. death valley and the sahara aren't exactly friendly to human life at the moment. sensationalism of articles like this bothers me
people will wise up in 20-30 years and a few degrees wont change too much, temperature has fluctuated much more over the course of earth's history like another poster mentioned. there's too much action being taken regarding climate change for anything terrible to happen at this point
smog is a much more serious problem
The human-induced climate change is simply not comparable to those previous changes you are referring to. The natural CO2 cicle operates on a time scale of millions of years. We achieved changes of a similar order of magnitude in not even 300 years. Consequently, I am afraid that there might be differences in how well the flora and fauna can adapt to those changes. :)