Ozone: Good Up High, Bad Nearby

Ozone: Good Up High, Bad Nearby: "
Too much here... Cars, trucks, power plants and factories all emit air pollution that forms ground-level ozone or smog.Too little there... Many popular consumer products like air conditioners and refrigerators involve CFCs or halons during either manufacture or use. These chemicals damage the earth's protective oxone layer."

Hurumph.
-Robert "treehugger" D.