In going green, how energy is used can be more important than its source

Renewable energy sources like wind and solar are getting a lot of attention these days as a way to reduce the impact of energy use on the environment. But even enthusiastic supporters of alternative energy agree that the easiest way to cut carbon emissions and air pollution is to focus more on efficiency, and less on pollution-free generation.

“Efficiency is the steak,” said Carl Pope, executive director of the Sierra Club. “Renewables are the sizzle.”
International Herald Tribune