Beginning of Essay
is another alarming problem that we have encountered through our own negligence. The earth's atmosphere consists of mostly nitrogen along with oxygen and small amounts of other gases. One of these gases, carbon dioxide, affects the temperature on the earth. Th ....

Middle of Essay
.... air conditioners, and similar objects. Like carbon dioxide, the CFCs are trapping more heat in the earth's atmosphere. CFCs have also been blamed for ozone depletion. CFCs are suspected of breaking down ozone particles that shield us from the sun's ultraviolet rays. Too many ultraviolet rays can cause cataracts and skin cancer. A hole in the ozone has been discovered over Antarctic the size of the United States. The hole is actually where the ozone has been depleted or thinned by the CFCs. The use of aerosol cans accounts for most of the release of CFCs. This resulted in the United Stated as well as other countries outlawing the use of th ....