The increased levels of human activity to meet the living requirements of an ever-expanding world population is the main factor in the phenomenon known as the "enhanced greenhouse effect." Known to contribute largely to the current increase in the overall temperature of the earth, the enhanced greenhouse effect has been consequently linked to what many people are calling "global warming." The effects of global warming are now being seen worldwide and many are asking the question, "What caused it and what can be done to stop it""

The "natural greenhouse effect," commonly misinterpreted as the cause of global warming, is in fact an essential component in the maintenance of a warm, stable lower atmospheric temperature. To an extent, radiation from the sun is absorbed by the land and oceans on earth. The earth then re-emits some of this absorbed energy, with gases in the troposphere absorbing the re-radiated...