Green House Effect Essay

2233 Words Jan 20th, 2013 9 Pages
The Greenhouse Effect

Issue Statement

While some people believe the earth's climatic changes are due to the fact that the

universe is getting older, others believe it is due to the greenhouse effect.

The greenhouse effect is a naturally occuring phenomenon that is responsible for trapping heat near the earth's surface and keeping the planet warm. It is called the greenhouse effect because the way it works is similar to the way in which a green house functions. In a greenhouse sunlight passes through the transparent roof and walls and strikes the objects inside- plants, flowerpots, tables, and so forth. These objects absorb energy from sun, become warmer, and then give off energy themselves in the form of heat. Only a little
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Global warming could change the atmosphere so much and so fast that all sorts of plants and animals might soon be in danger os extinction. The greenhouse effect may be the most serious environmental problem the human race has ever experienced, for this reason scientists around the world are working hard to acheive a better understanding of the greenhouse effect, to predict the impact it will have on earth, and to discover ways to control it.

The greenhouse effect occurs when gases such as methane, carbon dioxide, nitrogen oxide and CFCS trap heat in the atmosphere by acting as a pane of glass in a car. The ‘glass' lets the sunlight in to make heat, but when the heat tries to escape, the gases reabsorb it. Holding this heat in causes heat waves, droughts and climatic changes which could alter our way of living. The greenhouse effect, in environmental science, is a popular term for the effect that certain variable constituents of the Earth's lower atmosphere have on surface temperatures. "It has been known since 1896 that the Earth has been warmed by a blanket of gases. The gases; water vapour (H2O), carbon dioxide (CO2), and methane (CH4) keep ground temperatures at a global average of about 15 degrees C." (Oppenheimer, p. 119-120) Without them, the average would be below the freezing point of water. The gases have this effect

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