The greenhouse gas that is most abundant, not to mention hating the largest effect on climate, is water vapor. Water vapor makes up 97% of all greenhouse gases. Of the 3% of greenhouse gases not comprised of water vapor, the largest component is carbon dioxide. About 4% of the carbon dioxide going into the atmosphere is due to man-made carbon dioxide coming from the burning of fossil fuels such as coal, oil and natural gas. These fossil fuels have been trapped deep beneath the earth's surface so their introduction in to the earth's atmosphere causes an imbalance which has been alleged to cause adverse effects on the environment. In addition to CO2, Methane (CH4), Nitrous oxide (N2O), Hydrofluorocarbons (HFCs), Perfluorocarbons (PFCs), and S

The natural CO2 production corresponding to the greenhouse effect is known as the carbon cycle. Carbon dioxide is absorbed from the atmosphere into plants when they breathe, and that carbon gets stored in the body of the plant itself. When plants are burned or when alcohol made from plants is burned, the carbon dioxide that results does not necessarily represent a man-made addition to the greenhouse effect, since the carbon in plants originally came from the air, and therefore already existed as a part of the carbon cycle which transfers carbon back and forth between the atmosphere and the surface of the earth. Burning vegetation only increases the greenhouse effect if it is done on a massive scale without the replacement of the lost vegetation. For example, massive deforestation in developing nations has not been offset by new forest growth elsewhere, and therefore represents a significant portion of man-made greenhouse gas emissions and an imbalance within the carbon cycle. In addition to natural CO2 emissions and water vapor, N2O, or methane, also contributes to the greenhouse effect. Methane is produced from the decomposition of organic materials, and therefore in normal amounts does not have adverse effects on the atmosphere. There has been questions however, about whether or not manmade sources of methane, such as cattle raising and rice growing be more damaging to the environment than CO2. If this were the case, more research would be necessary before any policies involving the greenhouse effect are introduced.

I see valid arguments on both sides, but I am the type of person that needs to see hard evidence before making any assumptions. Until I see a direct connection between global warming and the environment, I can't accept them as severe probl

Some common words found in the essay are:
PFCs Sulphur, Climate Change, Kyoto Protocol, , United Nations, greenhouse effect, carbon dioxide, greenhouse gases, water vapor, global warming, fossil fuels, carbon cycle, co2 emissions, CH4 Nitrous, complex computer models, earth's atmosphere, natural co2, greenhouse effect carbon, imbalance greenhouse effect,
Approximate Word count = 1198
Approximate Pages = 5 (250 words per page double spaced)