The backstory for this campaign, excluding the sun cooling, is really close to the backstory for a campaign I started prepping for a while ago, but never played. Main differences were nothing really happening in South America, India getting crippled by a serious epidemic, and thus not being a faction, with Japan being the country fighting proxy wars with China in SE Asia, and being it's own faction, and the EU having an overly poor relationship with NORAD, a combined version of modern IRL NORAD and what remained of NATO after the EU's unification. Pretty funny seeing such a similar timeline.