on 9/16/2008 8:39 PM Peter Dohm said the following:
"Rich Ahrens" wrote in message
. net...
on 9/16/2008 6:31 PM Peter Dohm said the following:
Ordinarily, I would just let this slide; but since the greenies have
decided that CO2 (which is nature's means of recycling oxygen) and O3
(which is nature's cleanser of the atmosphere) are "pollutants" according
to the strange reasoning of their adled brains, I feel compelled to point
out that I suggested that the aircraft would be sheltered in a
hangar--which would protect the outsides of the tires from part of the
damage. They still won't last until the treads wear out, but it will
help.
You're suggesting hangars are so airtight that CO2 and O3 are somehow
sealed away from the tires inside? The effect of O3 on tires is not
through increased UV or global warming. It's direct chemical interaction
with the polymer chains in the rubber compounds.

Not at all. However, UV is supposedly a player in rubber deterioration.

Via a separate mechanism. That's why tires are made and/or treated with
ozone protection additives.

There is not much you can do about O3, you'll just have to live with it.

Bull****. Reduce the amount of hydrocarbon and nitrogen oxides emitted
by various sources and you reduce the amount of low-level ozone produced
by their interactions. I'm not talking about the ozone layer here. I
mean the air we're breathing at our level of the atmosphere.