For anyone who is concerned, Freon 12 was invented (derived?) or whatever to be "heavy molecule" which would "fall to the floor" if it leaked out of a system. It was banned by international treaty because of its reaction with Ozone in the Ozone layer many thousands of feet up. Do you think that this was a political decision, not made by a scientist? AL Al Roberts twodelo2@xxxxxxxxxxxxx #4639/#16049 [Non-text portions of this message have been removed] To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/