英语翻译FiveThere was one thought that air pollution affected on

英语翻译
Five
There was one thought that air pollution affected only the area immediately around large cities with factories and heavy automobile traffic.At present,we realize that although these are the areas with the worst air pollution,the problem is literally worldwide.On several occasions over the past decade,a heavy cloud of air pollution has covered the east of the United States and brought health warnings in rural areas away from any major concentration of manufacturing and automobile traffic.In fact,the very climate of the entire earth may be infected by air pollution.Some scientists consider that the increasing concentration of carbon dioxide in the air resulting from the burning of fossil fuels (coal and oil) is creating a “greenhouse effect”— conserving heat reflected from the earth and raising the world’s average temperature.If this view is correct and the world’s temperature is raised only a few degrees,much of the polar ice cap will melt and cities such as New York,Boston,Miami,and New Orleans will be in water.
Another view,less widely held,is that increasing particular matter in the atmosphere is blocking sunlight and lowering the earth’s temperature — a result that would be equally disastrous.A drop of just a few degrees could create something close to a new ice age,and would bring difficulties in many of our top farming areas.Today we do not know for sure that either of these conditions will happen (though one recent government report drafted by experts in the field concluded that the greenhouse effect is very possible) Perhaps,if we are lucky enough,the two tendencies will offset each other and the world’s temperature will stay about the same as it is now.Driven by economic profits,people neglect the damage on our environment caused by the “advanced civilization”.Maybe the air pollution is the price the human beings have to pay for their development.But is it really worthwhile?

5

有一种思想,空气污染影响的地区的大城市周围工厂和重型汽车交通.目前,我们意识到,虽然这些地区空气污染最严重,但问题是字面上的意思.好几次了,在过去的十年里,一个重云的空气污染已经覆盖了美国东部,在农村地区带来健康警告远离任何主要集中的制造、汽车交通.事实上,整个地球的气候,可能受感染的空气污染.一些科学家认为二氧化碳的浓度增加而造成的空气中燃烧化石燃料(煤和石油)是创造一个“温室效应”——节约热量从地球,使世界平均温度.如果这一观点是正确的,这个世界的温度是华氏度,提出只有少数的极地冰帽将融化和城市,如纽约、波士顿、迈阿密和新奥尔良将在水里.
另一种观点,不在于提高特定物质在大气中阻挡阳光和降低地球的温度——这一结果同样是灾难性的.一滴水几度可以创造接近一个新的冰河时期,并将带来困难,我们的许多顶尖养殖区.今天我们不知道,这样的情况会发生的(尽管最近的一份政府报告由该领域的专家认为温室效应是很可能的)或者,如果我们幸运的话,这两个趋势将相互抵销以及世界的气温将保持大约相同的,因为它是现在.由经济利润,人们忽视了对环境造成伤害的“先进的文明”.也许是空气污染,价格是人类必须支付他们的发展.但这真的是值得的.