手机APP下载

您现在的位置: 首页 > 在线广播 > VOA慢速英语 > VOA慢速-新闻杂志 > 正文

VOA慢速英语(翻译+字幕+讲解):全球大气二氧化碳浓度创新高

来源:可可英语 编辑:clover   可可英语APP下载 |  可可官方微信:ikekenet
  


手机扫描二维码查看全部内容
ss9t1K)P.5JqUvZ

0]aw9Y9YR1SBGOze-r

Heat-trapping Carbon Dioxide in Air Hits Record High
Scientists say the world recently set a record for carbon dioxide in the atmosphere.
The record level was reached although industrial activities that produce carbon dioxide have fallen sharply. That is because of efforts to stop the spread of the new coronavirus.
Carbon dioxide is considered the main human-created greenhouse gas: a heat-trapping gas that warms the Earth's atmosphere.
The National Oceanic and Atmospheric Administration (NOAA) said carbon levels averaged 417.1 parts per million for the month of May. That is 2.4 parts per million higher than a year ago. The measurements were taken at Mauna Loa, a volcano in Hawaii.
Emissions of carbon dioxide, from the burning of fossil fuels, dropped by as much 17 percent in April. Fossil fuels include coal, oil and natural gas. However, the decrease did not last a long time.
Pieter Tans is a lead scientist at NOAA. He said carbon dioxide can stay in the atmosphere for hundreds of years. He added that the short-term reductions of carbon gas for a few months did not have much of a long-term effect.
"It illustrates how difficult it is — what a huge job it is — to bring emissions down," Tans said. "We are really committing the Earth to an enormous amount of warming for a very large time."
Records with direct measurements go back to 1958. Scientists say carbon dioxide levels are now nearly 100 parts per million higher than at that time. That is a 31 percent increase in 62 years.
Jonathan Overpeck is head of the School for Environment and Sustainability at the University of Michigan. He told the Associated Press, "The rise in atmospheric carbon dioxide levels is relentless, and this means the costs of climate change to humans and the planet continue to rise relentlessly as well."
Carbon levels in the air were higher long ago before humans, Tans said.
Tans added that carbon dioxide levels reach their highest in May because growing plants begin using more of the gas. That causes carbon amounts in the air to drop.
I'm Jonathan Evans.

F=;Sp_C]8fZ&*^j8r8^z^LlTxF!YNM(EWkN;2guH,9aK|OmghY

重点单词   查看全部解释    
greenhouse ['gri:nhaus]

想一想再看

n. 温室,暖房

 
absorb [əb'sɔ:b]

想一想再看

vt. 吸纳,吸引 ... 的注意,吞并

联想记忆
produce [prə'dju:s]

想一想再看

n. 产品,农作物
vt. 生产,提出,引起,

联想记忆
spread [spred]

想一想再看

v. 伸展,展开,传播,散布,铺开,涂撒
n.

 
volcano [vɔl'keinəu]

想一想再看

n. 火山

联想记忆
describe [dis'kraib]

想一想再看

vt. 描述,画(尤指几何图形),说成

联想记忆
planet ['plænit]

想一想再看

n. 行星

 
relentlessly

想一想再看

adv. 残酷地,无情地

 
administration [əd.mini'streiʃən]

想一想再看

n. 行政,管理,行政部门

联想记忆
exacerbate [ig'zæsəbeit]

想一想再看

vt. 加重(使 ... 恶化,激怒)

联想记忆

发布评论我来说2句

    最新文章

    可可英语官方微信(微信号:ikekenet)

    每天向大家推送短小精悍的英语学习资料.

    添加方式1.扫描上方可可官方微信二维码。
    添加方式2.搜索微信号ikekenet添加即可。