General knowledge and popular culture acknowledge natural climate changes. However I think people often overestimate the length of time involved in those chang

General knowledge and popular culture acknowledge natural climate changes. However I think people often overestimate the length of time involved in those changes, *overestimating the amount of time that has passed since dramatic climate changes in the past. E.g. knowing of "the ice age" but estimating that it happened millions of years ago and took millions of years for these climate changes to naturally occur. It's certainly not a secret that Manhattan Island was covered by nearly half a mile of ice less than 20,000 years ago, nobody is suppressing this knowledge, but nevertheless I think there's a wide gap between public knowledge and common knowledge.