How far south do you think the new ice wall reach? Do you think it’ll stop short of a certain boundary or are we looking at a brief interlude of an ice planet? I wonder how it will affect hardiness growing zones. I’d imagine we’d be looking at 2-6 levels cooler in most regions, unless again it’ll be an Ice planet Hoth scenario. Plus with the flip. I can only imagine there will be many eruptions which would contribute to a deeper and longer winter. 
