 When I was a child, we were driving past the Gary Steele Mills in northwest Indiana, and a film covered our windshield. As we were driving on the expressway, we had to pull off and wipe the film out. It was in the air. Or going from the Mojave Desert toward Los Angeles and watching the smog roll toward us. Those days are by and large gone. We have really cleaned up the air. But now, unfortunately, we have all these things aimed at reducing carbon dioxide emissions.