Not too many things more at opposite ends of the efficiency spectrum than creating a national rail system and adopting regulations that demand use of compact flourescent lights. The similarity appears to me, though, in terms of political will. Whether we aspire to change the major mode of transportation in this country or just to change the lightbulbs, regulation depends on leadership in congress, which actually depends (more than we'd probably like) on leadership in business. We don't appear to have either of these at the moment (can you say "major defense contractors and Big Oil"?).
Or maybe I've gotten it all wrong. Perhaps, as some suggest, it is possible for us to create this change (as quickly as the ice caps are melting) simply by using the trains and lightbulbs available to us now. photo credit Bruno Rodrigues