Our planet has even had times when we had no ice on our poles at all! But most human beings can only think in relative variability for everything, why should climate be different. If the weather looks bad today, it is the worst EVER (even if no records were broken). Forget having a population that can think in geologic time, thanks to the NEA, we're lucky American's can see 2 feet in front of their faces these days. And the ones that do are probably home schooled!