That's a great point. Harry Saunders et al. showed this effect clearly a few years ago with their work on economics of lighting. The thing that screws up green

That's a great point. Harry Saunders et al. showed this effect clearly a few years ago with their work on economics of lighting. The thing that screws up green economics is the indirect energy that goes into products like efficient LEDs. [1] (Which I installed in abundance in my house, incidentally. It decreased our electric bills as theory predicted but we also bought more lights and replaced a number of switches and transformers.) [1] http://thebreakthrough.org/archive/why_energy_efficiency_does_not http://thebreakthrough.org/archive/why_energy_efficiency_doe...