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温室效应PPT课件

上传者:梦&殇 |  格式:ppt  |  页数:28 |  大小:971KB

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ts and reproduction.?Р(6)传染疾病肆虐:由于全球变暖,许多通过昆虫、食物和水传播的传染性疾病的传播范围将扩大,并对贫困地区的人口造成显著影响。??(6) infectious disease scares: because of global warming, many by insects, food and water spread of infectious disease spreading scope will expand, and in the poor area population causes noticeable effect.Р(7)经济发展蒙阴影:据统计,20世纪90年代,全球发生的重大气象灾害比50年代多5倍,因此造成的年均经济损失从60年代的40亿美元飚升至290亿美元。??(7) economic development by shadows, according to statistics, in 1990s, global happen major meteorological disasters five times more than the 1950s, thus causing the annual economic losses from the 1960s jumped to $4 billion to $29 billion.?Р(8)食品供应贫乏:全球气候升温将致全球农业减产,或许在下个世纪出现食品匮乏的局面。??(8) the food supply poor: global climate warming will cause global agricultural yields, perhaps the next century appear food deficient situation.

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