Imagine a day when there is NO SMOKE, NO CFC (NOT KFC), NO RADIATIONS..THEN obviously the earth's atmosphere would start curing the hole in it ( which is supposed to be the prime reason for the abnormal rise in earth's temperature, lately) by itself and that wud be the END of Global Warming . But for A DAY with no SMOKE or Radiations needs a total shut down of the factories around the world; no means of transportation other than bicycle; no electric power supply which requires a fuel to be burnt, no refrigeration systems working which might eject CFCs; No cell phones ... I guess that would be more like that what we've seen in the "I am Legend" movie..Such a day is practically impossible!!!
These all are the just side effect's of man's inventions so far.. Cant be perfect ,, still cant live without it, too.. So get away with it ,, but be careful the way you handle it and let others too know what would be better to do..

---If you can't CONVINCE them, CONFUSE them!!!