Tim Worstall does some dynamic thinking about energy consumption and the price system.
If you want energy efficiency in the face of high natural gas prices this winter, here’s my suggestion: install new windows. In September we got double-paned, UV-coated, argon-gas-filled windows on the front and side of our house (north and west faces), and the difference is stunning. It’s cold and snowy here today, and I’m sitting in our (enclosed but unheated) front porch, which was uninhabitable all of last winter. I’ve also been able to turn down the thermostat 2 degrees and feel no difference in comfort.