The Importance Of The Ozone Layer



The February 17, 1992 edition of time magazine's cover story started like
this: "The world now knows that danger is shining through the sky. The
evidence is overwhelming that the earth's stratospheric ozone layer-our
shield against the sun's hazardous ultraviolet rays-is being eaten away by
man made chemicals far faster than any scientist had predicted." Now this
is interesting rhetoric, but there is no evidence here to support this
article at all. Where are the facts? The studies? What I will put before
you is the facts, then make your own decision.

In order to understand if the ozone layer is really disappearing, we need
to understand what it is and what it does. When ultraviolet light ...

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a certain
amount of chlorine monoxide in the atmosphere.

It is important to remember that ozone is constantly being created and
destroyed in the atmosphere. The amount of ozone in the atmosphere is based
on these reactions. There are many factors that influence the amount of
reactions like season, latitude, and solar cycle. Because of these factors
ozone can vary wildly each day. In the northern latitudes there can be up
to 40% difference than the day before. And in the equator regions, there
might be no variance at all.

Unfortunately, the Congress passed a bill reducing the production of CFC's
based on a NASA document. This document only told half of the truth. It
said that chlorine was high in an area. What it didn't say was that a
couple of days before and after, the levels returned to normal. Now there
is a ban on CFC's that will affect many across the nation.

It has been proven that chloride causes ozone to break down. However, we
don't know where it all comes from. The ...

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PAPER DETAILS
Added: 10/26/2004 07:40:30 AM
Category: Science & Nature
Type: Premium Paper
Words: 765
Pages: 3

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