[shelterguy]

The Halloween blizzard of 1991 in Minneapolis must have happened before global warming.

http://www.kare11.com/article/news/halloween-blizzard-of-1991-stirs-memories/89-609866287

[LouAvul]

1991? 15,000 years ago we had a mini ice age. That was global cooling. Then we had global warming and the ice melted. That's how the Great Lakes were formed.

Where were the cars, coal fired plants and jet carbon footprints back then?