Global Warming : Problems And Solutions Essay

1217 Words Nov 20th, 2014 5 Pages
Global Warming: Problems and Solutions

Global warming is defined as “a gradual increase in the overall temperature of the earth 's atmosphere generally attributed to the greenhouse effect caused by increased levels of carbon dioxide, CFCs, and other pollutants.” by the Oxford Dictionary. This means that due to the effects of pollutants in the atmosphere the temperature of the earth is rising in a process called the greenhouse effect. The greenhouse effect is what happens when solar radiation (light, infrared and ultraviolet) pass through the clear atmosphere. Some of this energy is reflected back into space while the rest of the energy from the radiation is absorbed by the earth and warms it. Infrared radiation is then re-emitted by the earth and absorbed by greenhouse gas (carbon dioxide, CFCs, etc.) molecules. A small amount is reflected back to earth again by the atmosphere. The radiation absorbed by the greenhouse gases means there is more energy and consequently more heat, warming the earth even more.

While the process of radiation from the sun is natural and does not harm the earth, the greenhouse gases within the atmosphere are at a higher level than necessary due to human activity. Carbon dioxide (CO₂ ) is a natural substance in the air, but at this point in time is at its highest concentration at about 0.04%. Emissions of CO₂ are primarily through the burning of fossil fuels (oil, natural gas, and coal), solid waste, trees and wood products. Alterations in land…

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