so what is the reason for this? Is it industry? I can't believe that it is all automobile emmissions. Heck, there's only 32 million of us, and only a portion of us drive. Is it coal fired energy? Can't be that, there's more in some US states than we can account for here. So..... is it that we need to burn energy in the winter to stay warm? then why is Russia so much below us????
Again. What is it?
