RE: [Michalak] Re: AF3, new boat builder looking for advise
- I agree. I and the american public get mis-informed frequently over here. It seems to happen every time there's money to be made by someone who can manipulate the government or artificially engineer social behavior. It really is a shame and that's as far as I'm going to go with this.
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From: Al <al_a_man@...>
You really were mis-informed. Ozone layer depletion
is a result of halogen radical formation in the upper
atmosphere from man-made halogenated hydrocarbons
(CFCs) attacking ozone molecules (three oxygen atoms
bonded together) and hence depleting them. Ozone is
important in soaking up UV radiation from the Sun and
space; this UV radiation is a significant cause of
skin cancer in the southern hemisphere and elsewhere.
It doesn't have anything to do with global warming.
Global warming is the accumulation of man-made carbon
dioxide and other gases in the atmosphere that creates
an effective blanket trapping heat within the earth's
Ozone layer depletion is a particular problem in the
southern hemisphere as the hole in the ozone layer
sits somewhere around the Antartic and Australia
(hence the "Slip, Slap, Slop campaign that my
antipodean friend from University is always
counselling me to adopt) but has implications for the
whole population of the earth due to elevated UV
Global warming is everyone's problem!
You may have been mis-informed because it's very easy
to get confused by the two issues - in the course of
writing this post I wrote "Global Warming" where I
meant "Ozone Layer Depletion".
So what does this mean in terms of boatbuilding?
Well, in 50 years' time there will, of necessity be
rather more of it, because the sea levels will be
higher, due to global warming. However, we may be
slightly less worried about UV as the hole as been
closing slowly in recent years. However, with the
rapid industrialisation of China, India and other
areas that are not signed up to industrial agreements
regarding the control of CFC production and use
(they're the biggest cause of the ozone problem) that
hole may get blown wide open. However, as the oil
will have run out, we'll have no epoxy to build the
things with, so will have to revert to doing things
the old way! Some may argue that it's not all bad...
I very much doubt that that has made the issue any
clearer! (And if anyone's wondering, I'm not a tree
hugger, I'm a learner Chemical Engineer and we're the
worst polluters of the lot... I guess you could argue
I'm trying to improve the system from within...)
Try the all-new Yahoo! Mail. "The New Version is radically easier to use" � The Wall Street Journal
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