oducts that threaten the environment. These products or chemicals can float into the air and are becoming a major source of pollution. Some chemicals we have created are depleting the ozone layer. Humans use dangerous materials to contaminate the air, wate

r, and land. Contaminating the air is our first serious threat to our planet. In many large cities, cars and factories pollute the air. In cities such as Los Angeles and Mexico City smog is a constant problem. Children, elderly people or people with asthma often get sick from breathing dirty air. There have been new developments in our understanding of the holes in the ozone layer and in our scientific studies of the spreading risk of ozone depletion. CFC's and chlorine are known for destroying the ozone layer. Chemicals that are in the air cause different hazes. Smog from our cars are easily seen if you are in populated city. Certain hazes reflect a large amount of the incoming sunlight. Through time reduced sunlight could r!

educe the amount of evaporation of the ocean water and would then cause the earth to have less rainfall. When there is less rainfall there aren't as many plants being grown. Having fewer plants will cause more animals to starve to death. If plant and animal life is destroyed then we will eventually perish too. Another threat is posed by acid rain, a type of air pollution. The burning of fossil fuels causes acid rain. Once these fossil fuels are burned they are released into the air. "Once in the air, some acid-forming materials-large particulates-from power plants, industries, and mobile sources fall to the earth just a few miles away or within 18 to 30 miles."(Gay 27) When this occurs these acid materials end up in our water or on the land we live on. Another problem we face is water pollution. Water is our most valuable resource. It is used for a variety of uses. Factories, sewage treatment plants, and oil tankers cause water pollution. If an oil tanker has a leak it covers the ocean with oil. This oil ends up on our beaches and kills animal life and makes our b

Some common words found in the essay are:
Glaven Norfolk, Mexico City, Environment Humans, John Steinbeck, ozone layer, water pollution, animal life, land live, plant animal life, cause water pollution, spray poisons, air cities, water land, animals die, runoff water, plant animal,
Approximate Word count = 1213
Approximate Pages = 5 (250 words per page double spaced)