Actually this has me thinking about something from scifi… I think it was Ring world or something like that, where they basically made a ring of solar shields so as the ring world spun around the shields would create night and day cycles. Now imagine if we did something like that which only shaded the sun every couple days, and we built massive solar collectors on the inside of each shade? Solve global warming and the energy crisis all in one shot!

Now if only that whole free market would get its ass in gear…