30,000 yrs ago the ice on the Great Lakes was a mile thick.
30,000 yrs from now the ice on the Great Lakes will be a mile thick and there's nothing man can do about it.
Which is a bigger threat to humanity: Ice a mile thick across North America, or temperatures warming by two degrees over the next century? Liberals don’t see either as a threat, but they do see milder weather as an opportunity to grab more power.