Dont be an idiot...
No person I know of that is worried about global warming thinks it will kill off all life on earth- I dont think it will kill off humanity- my concern is it will make life rather unpleasant- heck, even if we turn earth into a hell like venus, I doubt all life would cease- but I wouldnt want to live there...
Do us a favor an quit setting up strawmen that you valiantly slay.... you are better than that...