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- From: parson_r@cubldr.colorado.edu (Robert Parson)
- Newsgroups: sci.environment
- Subject: Re: Ozone (A few questions I would like answered.)
- Message-ID: <1992Nov15.180816.1@cubldr.colorado.edu>
- Date: 16 Nov 92 01:08:16 GMT
- References: <Bxqy4z.KJu@ucunix.san.uc.edu> <1992Nov15.180329.4931@netcom.com> <1992Nov15.233916.7922@nsisrv.gsfc.nasa.gov>
- Sender: news@ucsu.Colorado.EDU
- Organization: University of Colorado, Boulder
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- In article <1992Nov15.233916.7922@nsisrv.gsfc.nasa.gov>, hannegan@hyperion.gsfc.nasa.gov (Bryan Hannegan) writes:
- >
- > There is an interesting arguement put forth in a Nature article by Dr. Ralph
- > Cicerone, and collaborators concerning the "environmental engineering of the
- > stratospheric ozone layer". I'm at home right now, but I have a copy of it
- > in my office and will post the citation if asked. The formation of ozone,
- > in the stratosphere and in the troposphere is an endothermic process, that
- > is it takes energy to make it. In nature this energy comes from the UV light
- > the oxygen molecules absorb, and it is quite a bit of energy.
- >
- Since I'm in my office I'll save Bryan some trouble :) - it's _Science_ _254_,
- 1191 (1991). They also published a subsequent commentary in _Nature_ _356_,
- 472 (1992); Jan Schloerer posted an excerpt from this on the net a couple
- of weeks or so ago.
- The idea (intended more as a stimulus for discussion than as a practical
- proposal, at this early stage) was to dump a few thousand tons of ethane or
- propane into the antarctic stratosphere. These would convert the Cl-containing
- radicals back to HCl, which by itself does not react with ozone. The operation
- would have to be repeated every year, since it does not permanently remove the
- Cl. Cicerone et al. admit that there are a number of problems with this
- particular proposal, but remark that "exercises like this are essential first
- steps in the responsible exploration of the feasibility of environmental
- engineering."
-
- Robert
-