On Sat, 25 Dec 2004 23:06:26 GMT "James"
wrote:

"James Sweet" wrote in message
news:dfEyd.2120$1U6.132@trnddc09...

Freon isn't a greenhouse gas, it reacts with ozone and is the cause of the
large hole above the arctic.

Kindly demonstrate proof that use of freon "caused" the hole in the ozone,
and that it wasn't already there and doesn't fluctuate in size on it's own
due to natural forces.

You might want to read several articals in Physics Today in the last
few years. I'm only familiar with those because that's one I get, but
I'm sure that there are other scientific journals that have detailed
the chemistry that is responsible for these reactions. The process has
been well known in the scientific community for more than 20 years.

It remains a political question mark simply because it is inconvenient
to some parts of the political spectrum, mostly the same people that
have trouble with evolution, the heliocentric solar system, and the
concept of a round earth.

Ozone concentrations over both poles has been tracked for many years.
Naturally there is a normal variation from year to year, but the
current trend is way outside the norm.

Ozone concentrations over the north pole have also been tracked for
the same amount of time, but until recently there was never a "hole"
there. Now we have an annual hole. This is a distinct change.

Science quiz, do you know where ozone comes from?

Ozone is created normally in the upper atmosphere from the ionization
of O2 by the solar wind.

Ozone in the lower atmosphere, from automobile exhaust, etc, makes its
way to the upper atmosphere only very slowly.

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Jim Adney
Madison, WI 53711 USA
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