Global Warming
(After a lot of reading and hunting around on the net, I found a great deal of
information on this topic. I had never really researched on it before so wanted
to make sure that calculations agreed from report to report. Most of them did so

I will base my answer on these different reports. This subject is extremely
interesting, scary and a bit of a shock as to how much we have abused and taken
advantage of this Earth. Though progress as far as technology has been something
we make use of and enjoy, we are paying for it in ways I never thought of before
this subject came up in this class! Please forgive my ignorance. I am troubled
that my children and their children will suffer because of our lack of concern,
knowledge and greed. I read a short story the other day, about the people in a
village having never heard the word cancer until they were run out of their
homes and into the city area's. Years later, some of the people from this
village are dying from disease. my point is that before they came to the cities,
they had always died of old age ...) FIRST of all, it is important to know that
the "greenhouse effect" is not a bad thing in itself. In fact, this
planet would be a life-less waste land without its natural greenhouseing. There
are a collection of gases called "greenhouse gases," which are water
vapor, carbine dioxide, ozone, methane, nitrous oxide, and chlorofluorocarbons
(CFC). Without the natural greenhouse effect, the surface temperature of our
planet would be an average of -18?C (zero degrees F). The mixture of these
gases have remained pretty much stable over the centuries and have kept us all
living. But here we are in the late nineties, and we are not so stable anymore.

Our activities and what we use to perform our activities is increasing year to
year, many of them doubling and tripling. It's a case of the amount of gases
that Earth produces naturally vs. the amount of gases produced manually by us.

Do you drive? How about using those disposable diapers that NEVER disintegrate?

Do you smoke? How about garbage or junk burning? Do you BBQ? Where do you work?

Do you have an air-conditioner? Do you separate your garbage, use hair spray,
spray deodorant, spray paint, flea spray, perfume, kitchen spray cleaner, bleach
in your laundry, bleach in your hair, use a freezer, use an air conditioner in
your car, use your fireplace, have a growing collection of newspaper and
magazines, throw away food, use paper and plastic food containers, use bug
spray, use lawn pesticides, ... Okay, this could go on forever. The effects of
the huge overuse of these items of luxury plus all the other unmentioned items
and activities plays havoc on our atmosphere. We didn't worry about this 100
years ago, and the industrial revolution is the culprit for a large part of
this. The reason for this is a little thing called Carbon dioxide. Where is the

C02 coming from? Fossil fuel burning (75%), land clearing & burning (25%) ,
as well as car exhaust and coal burning. This stuff stays in the atmosphere for

50-200 years. Here is how it works. The chemical makeup of our atmosphere and
ozone is very complex. It is a combination, and interaction of the ocean, sun,
land, and the biosphere. The greenhouse gases work to trap the heat producing
energy on our Earth, and pretty much does a good job of it if left undisturbed.

We have disturbed it. The human production of greenhouse gas producing chemicals
is what is disturbing it. This production by humans of these particular gases
linger in our atmosphere for many many years and they burn up our protective
ozone blanket faster than it can rebuild itself. Our ozone blocks out most of
the killer radiation rays from our sun. Ozone is a molecule with just three

Oxygen atoms. It is created when UV light reacts with oxygen gas, which has two

Oxygen atoms. UV light also destroys ozone, so you need just the right mix of UV
light and oxygen to get an ozone layer. For the last 450 million years, our
ozone has been our sun screen. Chemicals that we use in daily life produce ozone
eating atoms when they reach the stratosphere and are exposed to intense UV
rays. Chemicals such as CFC's are too unreactive to be removed and they rise
slowly, taking 10-20 years to make the journey up to the stratosphere.