Ozone Layer

1764 WORDS

Ozone Layer
Some scientists have proclaimed that the human race is slowly depleting the
layer of ozone which protects us from ultra violet light. In reality, humans
have very little control of the world in which we live. Scientific evidence has
shown that there is very little depletion in the ozone layer and the
contributions the human race makes towards this depletion is and always will be
insignificant compared to nature. The theories of the depletion and what it
would cause are flawed and contradictory. Where and when did this global killing
threat begin? It all began in the mid 1960's when the United States government
began pursuing super sonic transports. These would be planes which would travel
in the stratosphere, very close to the ozone layer. The first environmentalist
complaints were actually of the noise factor. These large planes would be
traveling in excess of the speed of sound. Subsequently there would be sonic
booms heard on the surface (Singer). The arguments fell on deaf ears in

Washington. The next objection came in the form of ozone depletion. A fleet of
over 500 of these planes would ultimately destroy the ozone. This would allow
more ultra violet radiation to fall to the earth and in turn skin cancer rates
would sky rocket. That was more than enough for the federal government to get
involved, they immediately canceled the project. At that time there was no study
done to investigate these claims, but there has been since. The initial
estimation was that a fleet of 500 SSTs would effectively reduce the ozone layer
seventy percent. In the 1970's that number fell to ten percent. With the
emergence of the Concorde, which is a SST, in the 1980's, studies were done that
show the emissions from these planes actually insulate the ozone layer and
prevent it from being depleted (Singer). There is irony in the fact that the
initial claim of ozone depletion, actually turned out to aid it. This isn't the
only piece of irony when it comes to the ozone. The second part of the initial
claim said that ultra violet light would fall on the earth and cancer rates
would go up. One could claim that melanoma rate have gone up within the past
years because melanoma rates have increased 800% since statistics were first
collected in 1935. Unfortunately there has been no corresponding change in the
ozone layer or the amount of UV light reaching the surface. To the contrary, UV
levels have been on the decline at every test center (Singer). Also the fact
that indoor workers have a twenty-one percent higher chance to get melanoma than
outdoor workers, further supports the fact that UV rays themselves do not induce
melanoma (Howard). Another piece of irony, the SSTs cause ozone depletion, which
in turn cause UV rays to increase. And UV rays equal cancer, right? Paragraph on
the current measurements of the ozone and what scientists believe cause the
changes in thickness. When SSTs were no longer an issue the scientific community
was still concerned about this claim of depleting the ozone layer. They began to
look at what else could cause this depletion and at this time compiled a list of
ozone gases. Ozone gases have now become a term associated with those awful
gases which destroy the human race's only protection from the sun and it's
deadly UV rays. What are these gases though? Where do they come from? The most
commonly referred to of gases are CFCs. These gases are Fluorocarbons. CFCs come
from commonly used items such as aerosol cans, refrigerators, and air
conditioners. Believers in the depletion theory believe that humans release
these gases and they go into the atmosphere and neutralize the chemicals that
hold the ozone together. Thus holes begin to emerge and in turn the whole world
is doomed. One study in 1959 stated that if the fluorocarbon industry continues
to grow at it's twenty-two percent rate between 1960 and 1972, then by 1995 the
ozone would be depleted by over forty percent (Ponte). Well the industry grew at
over twenty-two percent during those years and yet there hasn't been a forty
percent decrease in ozone. Not even a thirty, or even a fifteen and even ten is
too large. In actuality the measurements now show a six percent increase (Bidinotto).

Yes an increase! The other amazing fact is that in 1976 an Alaskan volcano
spewed 570 times the worlds CFC production (Begely). That means in a matter of
days this one volcano produced more CFCs

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