User blog comment:Charcoal121/EA Comments On Why It Chose Battlefield 4 Over Bad Company 3/@comment-24.7.34.177-20120721090812/@comment-28584497-20120722051805

Logically, when an ice-age hits, generally what happens is that ALL biomes become more exaggerated versions of their normal selves; that is to say, the Sahara would expand massively, and we'd probably see a far more stormy and flooded (or drier) version of the Amazonian forest.