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Global_Warming

2013-11-13 来源: 类别: 更多范文

Global Warming Global Warming / Climate Changes Int’l Global Warming is shorthand for the climate changes that may result from excessive heat being trapped in the Earth’s atmosphere by so called green house gases. Global warming as defined in out test is “the gradual rise in world temperature, a suspected consequence of greenhouse gases trapping heat emitted from Earth that would otherwise escape in outer space” (380). This climate change can be attributed to several different possibilities both natural and forced through human activity. “The general state of the Earth’s climate is controlled by the balance of energy the earth releases back to space”(Colls). One natural action, which can cause change, is the Earth’s shift in orbit rotating around the sun, this changes the amount of energy we receive from the sun. Other natural causes are within the oceans, atmosphere, ice sheets and volcanic eruptions to name a few. Such natural causes have created a series of ice ages on Earth. Over more recent years humans have caused many changes to the Earth which is a major cause for global warming. The burning of fossil fuels, deforestation, landfills, methane from rice cultivation and cattle raising are all global, warming, states, earth, climate, earth’s, years, talks, situation, natural, changes, change, atmosphere, through, temperature, greenhouse, gases, few, effect, cause, united, sun, several, recent, power, past, over, much, made, largest, kyoto, ice, humans, however, heat
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