Global Warming And The Greenhouse Effect

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of methane have doubled, and nitrous oxide has risen by 15%. The increases of these chemicals have enhanced the heat trapping capability of the atmosphere of the earth. Sulfate aerosols, cool the atmosphere because they reflect light back into space, but sulfates do not live long in the atmosphere.
Scientists still do not know what exactly is heating up the earth. Some say the earth is going through a natural cycle because the earth has gone through cold periods as well as hot periods. Mounting evidence is saying that humans are to blame for the rise in temperatures over the past 120 years. When we burn fossil fuel, oil, gasoline, and natural gas to run power plants, cars, and heat homes, we produce carbon dioxide. An increase in carbon dioxide magnifies the greenhouse effect. All this energy accounts for 80% of society’s carbon dioxide emissions, 25% of methane emissions, and 20% of nitrous oxide emissions. In 1994, the U.S. emitted one fifth of all the greenhouse ...

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temperatures are expected to raise the sea level and change local climate conditions. By changing these conditions, the climate could alter forests, water supplies, and crop yields. This could also threaten human health, and harm many ecosystems of animals. Deserts could expand into range lands and many National Parks could be altered. And many of the most important impacts depend upon whether rainfall will increase or decrease. The rate of climate change is also much more important than how much the change will be because the rate will determine whether humans and ecosystems can adapt to survive. A decreased day and night temperature and night warming may happen when an increase ...

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