“...Next ice age will kill 1000 times more humans...”
Because there are so many MORE humans, now???
Yes, but also, if my zone 5 in New England turned into a 6 or 7 or 8, it would be a real season extender and I could grow much more food. If we were to experience the 2 degree decrease in mean average temps as happened during the little ice age, that would mean shorter to no growing season. That would be devastating, as it was for the European grain growers in 1300s and on, etc. So yes, global cooling potentially MUCH worse than global warming.
Comparing how many humans will die TODAY if global temps increased by 2 deg Fharenheit versus if ice age started today with global temps plummeting 5-10 deg F.