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- Xref: sparky sci.energy:5603 talk.environment:4668
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!magnus.acs.ohio-state.edu!usenet.ins.cwru.edu!agate!naughty-peahen
- From: Jym Dyer <jym@mica.berkeley.edu>
- Newsgroups: sci.energy,talk.environment
- Subject: HCFCs Not Enough of an Improvement (was: . . . Ozone-Friendly Fridge)
- Followup-To: talk.environment
- Date: 20 Nov 1992 00:46:20 GMT
- Organization: The Naughty Peahen Party Line
- Lines: 38
- Message-ID: <Jym.19Nov1992.1646@naughty-peahen>
- References: <Greenpeace.16Oct1992.2151@naughty-peahen>
- <Greenpeace.16Oct1992.2210@naughty-peahen>
- <1992Oct19.203128.1@cubldr.colorado.edu>
- NNTP-Posting-Host: remarque.berkeley.edu
- In-reply-to: parson_r@cubldr.colorado.edu's message of 20 Oct 92 03:31:28 GMT
-
- > While it is true that HCFC's contribute to ozone depletion,
- > they are much less effective at this than CFC's. Their ozone
- > depletion potentials range from about .01 to .1 (compared to
- > 1.0 for CFC-11).
-
- =-= This comparison is certainly true, but you neglect to
- address the magnitude of the damage being done. HCFCs are
- just CFCs with hydrogen added to make them less stable, so
- that they break up sooner.
-
- =-= Given that CFCs yield 100 years of ozone depletion,
- "sooner" means (to use your statistics) "only" 1-10 years.
- This is better news, but it is by no means good news,
- especially for those who'll be spending time in the near
- future. :-|
-
- > HCFC's are not an ideal solution (and I have never heard them
- > advertised as such) . . .
-
- =-= I've seen phrases like "CFC-free" and "ozone-friendly" used
- for products that have replaced CFCs with HCFCs.
-
- > . . . but I see no problem with using them in situations
- > where better substitutes are not yet available.
-
- =-= Again, the magnitude of the damage is such that I would have
- to disagree.
-
- > To determine whether a substitute is "better" one needs to
- > consider a wide range of factors, including economic ones.
-
- =-= On this I agree, but with one huge qualification: Most
- systems for calculating "economic factors" aren't designed
- for the real world, but for one in which resources are never
- depleted and the costs of environmental damage is never even
- considered. "Economic factors" that overlook such things
- aren't worth the paper they're printed on.
- <_Jym_>
-