I'd like to point out that predictions like this have been made repeatedly, so unless we start hearing things from really credible institutes or seeing real, hardcore signs I'd take anything one lone researcher says with a grain of salt.  

Every time I hear doomsday crap like this, it makes me wonder. There are million upon millions of people. What he has forgotten is the circle of life, reproduction. Our population will continue to go up...I would say our population would decrease from this because resources....but if you think about it, it's logistic growth with our species. Our population would increase, decrease, and increases again. I believe this man is wrong, I will not take his word.

@@Shoboni, @, @, @,

Here's a link you might want to check out;

http://guymcpherson.com/2013/01/climate-change-summary-and-update/

The essay in the link above links to credible sources. Take as much time as you need to sift through it all.

Perhaps most distressing of it all is that so far the best answer to this I hear is "that's not gonna happen". Come on, we can do better than that. I'm waiting for someone to swoop in and say "we know what we're dealing with, it's not pretty but we're going to take lessons from the Permian Mass Extinction event and prepare humanity to live in such a world". THAT is what would really put a smile on my face. That's why I brought up extraterrestrial colonies up since the world we're facing is going to be pretty alien compared to what we're used to.