There's so many logical and factual errors that my head hurts. But for a start: the K-T extinction event (which wiped out the dinosaurs) was caused by an aster

There's so many logical and factual errors that my head hurts. But for a start: the K-T extinction event (which wiped out the dinosaurs) was caused by an asteroid impact. Ice age, if there ever was one at that time, only played a secondary role. And yes, all scientists (at least sane ones) would agree that, if a several-kilometer-across ball of rock and iron falls from the sky, it will have such a disastrous consequence on the climate (among other things, including "staying alive" for most people) that our modern Global Warming will look like a summer picnic in comparison. ...which is basically non sequitur. I'm not even sure why you brought up dinosaurs.