Originally Posted by
Endus
Really, you can start with the claim that "ice ages come and go".
No they don't. Not like they think, at least.
We're in an ice age right now. The Quaternary. It's been going on for like 2.5 million years. What they're calling "ice ages" are just glacial periods within the Quaternary; we're in an interglacial period.
It's not even that complicated. Are there ice caps at the poles? Yes or no. If "yes", then you're in an ice age. That's the definition.
While there's possibly a cycle of ice ages now, we'd only be in the third of that cycle. And to put that in scale, the second of those ice ages ended before the dinosaurs emerged. It's not what they're thinking of.
And yes; in natural terms, the Quaternary is nowhere close to being over, and we should be chilling down into a new glacial period (a process that takes tens of thousands of years; you wouldn't notice anything over the span of human lifetimes, or even civilizations). But, this global warming thing is likely to kick us out of the Quaternary a few million years before it might naturally come to an end. We've already pretty much eliminated the Arctic sea ice, at this point, we're waiting on the Greenland and Antarctic ice caps. Sure, that might take a few centuries of melting (it's a lot of ice), but that's stupidly fast, on geological scales.