in the past 200 years, the earth’s

in the past 200 years, the earth’s temperature has increased greatly. it’s reported that a marked increase in the temperature of about 0.7°c appeared at the end of last century. some scientists think mini-umbrellas might reduce the global temperature.
building a single umbrella ,which is big enough to cover the whole earth ,seems to be impossible roger angle ,a scientist from the usa, has carried out research to deal with this problem. he came up with an idea of mini-umbrella. in fact, each mini-umbrella is made up of two parts ,a spaceship and a sunshade .a spaceship weighing about 1g would carry a sunshade that is half a meter long. it would be mostly transparent . that means light can pass it directly to reach the earth, with lands and oceans clearly in view.
pressure from the sunlight would keep the little spaceships in position around the earth at a distance of about 1.5 million kilometers. as a result ,sending over 1,000 billion mini-umbrellas space would reduce the amount of sunlight reaching the earth . this allows sunlight to be reflected


back to space easily , causing the temperature of the earth’s ground to fall off. covering large areas of the earth ,mini-umbrella together could reflect 1.8 percent of sunlight back, i roger’s plan, scientists will send up 800,000 mini-umbrellas at a time,20 million times in all during ten years. scientists suggest the earliest launch could be in just 16 years.
not all the scientists agree with the idea. some suppose there should be easier and much cheaper ways to prevent the earth from getting too hot, such as to slow down the pollution people bring and to reduce the human activities. whatever the result of the argument is , this idea of mini-umbrellas in space is certainly creative.

結果 (中文) 3:

在过去的200年里，地球的气温有了很大的提高。据报道，上世纪末出现了约0.7°C的温度明显升高。一些科学家认为迷你雨伞可能会降低全球气温。建立一个单一的伞，这是大到足以覆盖整个地球，似乎是不可能的罗杰角，来自美国的科学家进行了研究处理这个问题。他想出了一个迷你伞的主意。事实上，每个小伞是由两部分组成，宇宙飞船和遮阳伞，重约1g，飞船将携带一个遮阳伞，有半米长。它将是主要是透明的。这意味着光可以通过它直接到达地球，与陆地和海洋在视图中。从阳光的压力会让小宇宙飞船在距离约150万公里左右的地球位置。因此，发送超过1兆个迷你雨伞空间将减少阳光到达地球的数量。这允许阳光反射回到空间很容易，造成地球的地面温度下降。覆盖地球的大部分地区，小伞在一起能反映太阳光的百分之1.8，我收到的计划，科学家们将800000个小伞在一个时间，在十年的2000万倍。科学家们认为最早的发射可能在短短的16年内。并不是所有的科学家都同意这个观点。一些人认为应该更容易和更便宜的方法来防止地球变得太热，例如减缓污染带来的人类活动和减少人类活动。无论争论的结果是什么，这一想法在太空中的迷你伞肯定是有创意的。