Global warming is the increase in the average temperature of the Earth’s surface (Mastrandrea n. pag.). According to scientists, humans are the main cause of global warming. Scientists say global carbon dioxide emissions should be cut in half over the next fifty years or the effects may be irreversible (Eilperin n. pag.). The two main activities that humans do to contribute to global warming are burning fossil fuels and clearing land. Most of the fossil fuels come from burning in automobiles, factories and electric power plants which provide energy for houses and office buildings (McClure n. pag.). Continued global warming can cause harm to plants and animals that live in the sea and force plants and animals on land to move to new
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High water temperatures can cause a damaging process called coral bleaching. When corals are bleached, they lose the algae that give them their color and nourishment. The corals turn white and unless water temperatures cool, they die (Mastrandea n. pag.). Increased temperature also helps spread diseases that affect sea organisms. The world’s ocean has absorbed about twenty times as much as the atmosphere over the past half century, leading to higher temperatures not only in surface waters but also in water 1,500 feet below the surface. The increases in water temperature are well outside the bounds of natural climate variation (“Human Impact” n. pag.).
In addition, the burning of coal, oil and natural gas are changing the configuration of the atmosphere and contributing to climate change. These human activities have led to increased atmosphere concentration of a number of greenhouse gases, including carbon dioxide, methane, nitrous oxide, chlorofluorocarbons and ozone in the lower part of the atmosphere. Carbon dioxide is produced when coal, oil and natural gas (fossil fuels) are burned to produce energy used for transportation, manufacturing, heating, cooling, electricity generation and other applications. The use of fossil fuel currently make up for 80 to 85% of carbon dioxide being added to the atmosphere (“United Nations” n. pag.). Moreover, the global rising of the sea