2 rapid growth of energy consumption and greenhouse

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2, Rapid growth of energy consumption and greenhouse effect. Resulted in dramatic increase in atmospheric carbon dioxide, while the reduction in the tropical rainforest, will not be able to reduce carbon dioxide content in the Earth continuously heated, will cause polar ice to melt, rising sea levels pose a threat to the survival of humanity. 3, Acid rain because of the system into the industrial and transport emissions of sulfur oxides and nitrogen oxides to form acid rain, it will cause soil acidification, plant disease. This problem has been not only a region's problems, such as the U.S. plant emissions cause acid rain, floating down to Canada, the impact of Canada's natural ecology and environmental protection issues. 4, The global depletion of forests for economic incentives and the development and construction, the world's forests at an alarming rate gradually reduced, especially in South America and Southeast Asia, tropical rain forest deforestation, the ecological balance would not only cause the problem, leading to global climate change and deepened the greenhouse effect.
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5, Marine pollution, to reduce the problem of pollution of inland, so some waste discharged into the sea, because some countries have not strictly controlled.
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