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The serious problem of earth--Global Warming
Recent years, we are in a good environment, generally, and do not feel the cold.Why? Do you think this is a problem of earth? Certainly, it is a serious problem of earth—Global Warming.More and more climate experts are beginning to pay more attention to the
threats of global warming and figure the solution, caused by greenhouse effect.According to the authoritative survey, the reason are as follows.Firstly, the
amount of greenhouse gas, such ascarbon dioxide, rapidly increasing in atmosphere.Secondly,the direct effect of global warming is glaciers melting.Thirdly, effect of global warming is that the sea level is rising along with the glaciers melting.Certainly, these things bring many dangerous things.For example,first, the
global surface temperature has risen about 3.5 centigrade during the past 100 years and the rate of temperature rise is speeding up.The effects of global warming, including glaciers melt, sea level rise and crisis of human living, is from bad to worse.Second, with the global temperature increasing, the glaciers of north and south poles are melting gradually.Third,the animals, which live on the south and north poles, is facing the threat of extinction in future.For example, the number of polar bear is decreasing year by year.As the sea level rises, a large number of islands are facing the threat of being devoured.In fact ,in order to survive, the devoured countries must look for other lands to live.A more terrible thing is coming stealthy.In the proce of searching for other lands, a war, which fights for living space is likely to break out.The worst effect is that global warming is influencing the survival of human
being.The earth is a complete ecological system.As we mentioned before, the melting glaciers，the rising sea level and the potential war, will aggravate the wreck of ecological system.Due to the wicked environment, the human can not live on the earth any longer in future.How terrible the effects are!If we do not hope to encounter the awful effects,we must pay more attention to aware of the bad effects of global warming and put forward forceful and effective measures to prevent the aggravation of global warming.
