VOA英语学习网 > 美国之音 > voa慢速英语 > 2019年VOA慢速英语 > Science in the News >
缩小放大

VOA慢速英语:如何应对气候变化?种植一万亿棵树

关注 听力课堂微信 (tingclass123),获取更多英语听力资料。
[提示:]双击单词,即可查看词义!如果生词较多,请先学习:VOA慢速英语1500基础词汇
中英对照 听力原文

How to Fight Climate Change? Plant a Trillion Trees

如何应对气候变化?种植一万亿棵树

Scientists are asking: What is the best way to fight climate change?

科学家一直在问:应对气候变化最好的方法是什么?

A new study says: Plant many trees; one trillion trees, maybe more.

一项新的研究表明:种很多树;十万亿棵树,可能需要更多。

Swiss scientists say there is enough room for that many trees. In their report in the journal Science, they say even with existing cities and farmland, there is enough space for new trees to cover nine million square kilometers. That is about the size of the United States.

瑞士科学家表示有足够的空间去种植很多的树。他们在《科学》杂志上发布的报告表示,甚至就现今的城市和农田而言,也有足够的空间去种植新树木。这些新种植的树木可覆盖900万平方公里。那大约跟美国国土面积差不多。

Trees take carbon dioxide out of the air, and in return, put oxygen back into the air.

树木从空气中吸收二氧化碳然后作为回报将氧气释放回空气。

The study estimated that over a long period of time, the trees could take in almost 750 billion tons of carbon dioxide from the atmosphere. That is about as much carbon as humans have put into the atmosphere in the past 25 years.

该研究估计称经过很长一段时间,这些树木几乎可从大气中吸收7500亿吨的二氧化碳。那约是人类在过去25年内释放进大气中的碳量。

What is so bad about carbon dioxide? The gas traps heat, causing temperatures to rise.

二氧化碳的坏处到底在什么地方?该气体可困住热量从而导致气温上升。

Much of the gain from planting trees will come quickly because trees remove more carbon from the air when they are younger, the researchers said. The place that has the best possibility for removing the most carbon is the tropics— the area close to the equator.

研究员表示,种植树木带来的大部分效益很快会到来,因为树木更年轻的时候会从空气中移除更多的碳。最可能移除最多碳量的地方是接近赤道的热带地区。

This method would also have the lowest cost, says the study co-author Thomas Crowther.

该研究的联合作者托马斯·克劳瑟表示这种方法也将是花费最低的方法。

"This is by far — by thousands of times — the cheapest climate change solution" and the most effective, he said. Crowther is a climate change ecologist at the Swiss Federal Institute of Technology in Zurich.

“这是迄今为止,成千上万次最低廉的改变气候的解决方案”并且是最有效的方法,他说。克劳瑟是苏黎世瑞士联邦理工学院研究气候变化的一名生态学家。

The six nations with the most room for new trees are Russia, the United States, Canada, Australia, Brazil and China.

俄罗斯、美国、加拿大、澳大利亚和中国这六个国家拥有种植新树木的最大的空间。

Before his study, Crowther thought that there were other more effective ways to fight climate change besides cutting emissions. One example could be for people to change their diets by no longer eating meat. But, he said, tree planting is far more effective because trees remove so much carbon dioxide from the air.

在他的研究之前,克劳瑟认为除了减少排放之外有其他更有效的方法来应对气候变化。一个例子是人们改变他们的饮食习惯,即不再吃肉。但是他表示种植树木更加有效因为树木可从空气中移除如此之多的二氧化碳。

Thomas Lovejoy works as a biologist at George Mason University. He was not part of the study. But, he called the report "a good news story" because planting trees would also help stop the loss of biodiversity.

托马斯.洛夫乔伊是美国乔治梅森大学的一名生物学家。他并没有参与此项研究。但是他将这项报告称为一项好消息因为种植树木也可帮助阻止生物多样性的减少。

Crowther said planting trees is not a substitute for reducing the world's dependence on oil, coal and natural gas. The carbon dioxide produced by burning these fuels is believed to cause the warming of the atmosphere.

克劳瑟表示种植树木并不能成为减少世界对石油、煤和天然气依赖性的替代品。这些燃料产生的二氧化碳被认为是引起大气变暖的原因。

"None of this works without emissions cuts," he said.

“不减少碳排放这些都起不到任何作用,”他表示。

And it is not easy or realistic to think the world will suddenly start planting a lot of trees quickly, although many groups have started, Crowther said.

尽管很多组织已经开始实施,但是认为这个世界会突然开始迅速地种植很多树木并不是简单或者实际的想法,克劳瑟说。

"It's certainly a monumental challenge, which is exactly the scale of the problem of climate change," he said.

“这的确是一次巨大的挑战。正好是气候变化问题的规模。”他说。

The researchers used Google Earth to see what areas could support more trees, while leaving room for people and crops. Lead writer for the study, Jean-Francois Bastin, estimated there is space for at least 1 trillion more trees, but it could be 1.5 trillion.

研究人员使用谷歌地球可看到什么地区可支持种植更多树木的同时还要留给人类活动和谷物生长的空间。该研究的主要作者Jean-Francois Bastin估计有空间可种植至少1万亿棵更多树,但是也可达到15000亿棵树。

That is in addition to the 3 trillion trees that now live on Earth -- a number Crowther found in earlier research.

那是除了地球上现在生长的3万亿棵树之外的棵数。3万亿这个数字是克劳瑟之前的一项研究发现的。

I'm Anne Ball.

安妮·鲍尔为您报道。

How to Fight Climate Change? Plant a Trillion Trees

Scientists are asking: What is the best way to fight climate change?

A new study says: Plant many trees; one trillion trees, maybe more.

Swiss scientists say there is enough room for that many trees. In their report in the journal Science, they say even with existing cities and farmland, there is enough space for new trees to cover nine million square kilometers. That is about the size of the United States.

Trees take carbon dioxide out of the air, and in return, put oxygen back into the air.

The study estimated that over a long period of time, the trees could take in almost 750 billion tons of carbon dioxide from the atmosphere. That is about as much carbon as humans have put into the atmosphere in the past 25 years.

What is so bad about carbon dioxide? The gas traps heat, causing temperatures to rise.

Much of the gain from planting trees will come quickly because trees remove more carbon from the air when they are younger, the researchers said. The place that has the best possibility for removing the most carbon is the tropics— the area close to the equator.

This method would also have the lowest cost, says the study co-author Thomas Crowther.

"This is by far — by thousands of times — the cheapest climate change solution" and the most effective, he said. Crowther is a climate change ecologist at the Swiss Federal Institute of Technology in Zurich.

The six nations with the most room for new trees are Russia, the United States, Canada, Australia, Brazil and China.

Before his study, Crowther thought that there were other more effective ways to fight climate change besides cutting emissions. One example could be for people to change their diets by no longer eating meat. But, he said, tree planting is far more effective because trees remove so much carbon dioxide from the air.

Thomas Lovejoy works as a biologist at George Mason University. He was not part of the study. But, he called the report "a good news story" because planting trees would also help stop the loss of biodiversity.

Crowther said planting trees is not a substitute for reducing the world's dependence on oil, coal and natural gas. The carbon dioxide produced by burning these fuels is believed to cause the warming of the atmosphere.

"None of this works without emissions cuts," he said.

And it is not easy or realistic to think the world will suddenly start planting a lot of trees quickly, although many groups have started, Crowther said.

"It's certainly a monumental challenge, which is exactly the scale of the problem of climate change," he said.

The researchers used Google Earth to see what areas could support more trees, while leaving room for people and crops. Lead writer for the study, Jean-Francois Bastin, estimated there is space for at least 1 trillion more trees, but it could be 1.5 trillion.

That is in addition to the 3 trillion trees that now live on Earth -- a number Crowther found in earlier research.

I'm Anne Ball.

________________________________________________________________

Words in This Story

tropic - n. the part of the world that is near the equator where the weather is very warm

cheapest – adj. not costing a lot of money

biodiversity – n. the existence of many different kinds of plants and animals in an environment

realistic – adj. able to see things as they really are and to deal with them in a practical way

monumental – adj. very great or extreme

challenge – n. a difficult task or problem : something that is hard to do

emission – n. the act of producing or sending out something (such as energy or gas) from a source

diet – n. food and drink regularly provided or consumed

scale – n. the size or level of something especially in comparison to something else


内容来自 VOA英语学习网https://www.chinavoa.com/show-8745-241786-1.html
Related Articles
内容推荐