Funnily enough, this doesn't appear to be true. Your "scattered areas" comprise a solid majority of the world's English speakers: India and Pakistan alone have

Funnily enough, this doesn't appear to be true. Your "scattered areas" comprise a solid majority of the world's English speakers: India and Pakistan alone have almost as many English speakers as the US, and adding in the Phillipines tips it over. Similarly, Nigeria has more English speakers than the UK. That is to say, I don't think it's accurate to say that the English-speaking population is "heavily skewed" away from sunny areas.