As a follow up to my earlier posting on ozone, here are the latest numbers on ozone smog levels. The good news is they are down. The bad news is for those activists who want to use fears of low level ozone and smog as a rationale for Kyoto-style restrictions on private cars: there is nothing to fear.
So don't feel guilty for what you drive. You drive what you can afford -- economics makes for effective conservation. But if you have the income and like to drive an SUV, a luxury car or a truck, go ahead, its your choice. And if riding public transit or cycling to work makes you feel morally superior, that's o.k. too but don't try to pass any guilt over to me because I don't. Environmentally there's no difference.
