Concern about greenhouse gases and reliance on imported oil usually leads to a focus on the supply side of the energy equation, particularly exotic sources such as wind, solar, waves and hydrogen. … but the low-hanging fruit on the energy front is curbing demand — meaning more energy conservation. And it’s appalling that our government isn’t leading us on that.
This is, as far as I’m concerned, the baseline understanding that separates those with a clue about climate change from those without one: efficiency is the gimme, the biggest, fastest, cheapest step forward. As James Woolsey says, "People have radically overestimated the sacrifice and dramatically underestimated the opportunity."