User blog comment:Wijata Mateusz/Imagine a world without the Americas/@comment-257949-20120724091103/@comment-4612798-20120724123424

I was thinking something similar yesterday. Just want to add - depending on the existence or not of the regular OTL Arctic islands you'd probably not have any permanent Arctic sea ice meaning there would be no gulf stream. So not only would europe be storm battered it'd be cold as heck.

On the plus side it might level out Africa's climate a bit more? The Sahara could be a huge river/inland sea strewn plain.

But yeah, basically any history after say ancient greece is going be completely different. That's if humans ever get that far that is...