英语翻译Builders have known for many years that white roofs refl

英语翻译
Builders have known for many years that white roofs reflect sunlight and lower the cost of air conditioning.But now scientists say they have found a new advantage:slowing global warming.
Hashem Akbari believes that whitening 100 of the world's largest cities could make the influence of the expected emissions smaller over the next ten years.
White buildings and surfaces reflect far more sunlight than dark ones.Reflected sunlight does not increase the greenhouse effect.unlike the heat energy sent out by dark surfaces heated by the sun.
Dr Akbari,of the Lawrence Berkeley National Laboratory,California,also argues that if built-up areas were made white,less heat would stay within them,alliowing people to use their air conditioners less,which use a lot of power.
Dr Akbarihas found out that making 100 of the largest cities white would increase the sunlight reflected by Earth by 0.03%.He believes it would cancel out the warming caused by 44 billion tons of carbon emissions.
"Roofs are going to have to be changed one by one and to make that effort at a very local level,we need to have an organization to make it happen,'says Dr Akbari.
He argues that while the action would not solve the problem of climate,it would slow it.
"We can give the environment time to breathe.'he says.'I just don't see a disadvantage of this idea.It gives everybody advantages and you don't have to make hard efforts to make it happen.'
Akbari and his partners say they will try to persuade the United Nations to organize big cities to change the materials of their roofs.

很多年以前,建筑师们就知道白色的屋顶能够反射阳光和降低使用空调的成本.但近来科学家们声称他们又发现了白色屋顶有一个新的优点,那就是减缓全球变暖的速度.
Hashem Akbari认为如果把全球100个最大的城市变白可以让预计十年后释放出的温室气体造成的影响更小.
白色的建筑和表面比暗色建筑可以反射更多的阳光.被反射回来的阳光并不增加温室气体的效益.这一点上,有别于暗色的表面在阳光照射下会释放出温室气体.
位于加利福尼亚州的劳伦斯 伯克利 国家实验室实验员Dr Akbari,同样认为如果建筑物是白色的,就不会有那么多热量聚居,人们可以少一点用那些耗能极大的空调.
Akbari博士发现如果使全球最大的100个城市变白可以提到0.03%阳光反射率.他认为这相当于减少了44000000000吨二氧化碳释放出的温室气体.
“屋顶将会一个一个被改造,并努力做到同一个标准.我们需要建立一个组织来实现它”.Akbari博士说.
他声称这项举动并不能解决气候变暖的问题,但它能缓解气候变暖的步伐.
“我们可以给地球呼吸的时间,”他说：“我看不到这样一个完美计划的一点瑕疵.它对任何人都有益.你不需要花大力气去实现它.”
Akbari和他的搭档说他们会尝试着劝说联合国组织大城市来改变它们房屋屋顶的材料.