Just look at the new energy bill, you have to have your house inspected and it has to pass their energy audit before you can sell it. Lets see a tree hugger comes and sees your truck, your ATV's the targets on your garage wall from last trip to the range. He/she will be the one to decide whether or not you can sell your house. I still remember the cover of Time magazine from the 70's that was talking about global cooling, they were actually going to cover the ice caps with coal dust to absorb heat.