It's quite obvious that the U.S. is wasteing an incredible amount of electricity. I'll bet if there were a way to harness all the light that leaks out into space, it could power up a city for awhile. It's not too often you see efficient light fixtures in this country that reflect their output downwards. You see a lot of decorative "globe type" lights that shine in all directions. The way I see it, if it lights up the sky, it's a waste. We consume 30% more power than we produce and still complain we don't have enough.I agree it's an awesome picture.You can make out the continental shelves in the oceans.