BBC News Ice sheet creeps ashore on Minnesota lake - YouTube:
I've always argued that "global warming" would be easier for humans to deal with that "global cooling". The planet was ice-free for much of it's 4-5B year life and did just fine. We actually live in a very cold period (not the coldest, see "Snowball Earth") relative to the warmer periods in planet history.
There are more extensive and better videos out on YouTube if you want to delve deeper, but I liked the fact that good old Mille Lacs made the BBC.
Try to imagine those ice sheets a mile deep, but flowing much slower, covering pretty much the entire Northern Hemisphere. Somehow I always find that picture scarier than the one of me sitting on my deck here in MN in January, but I guess to each their own.
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