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[科学美国人60秒] 【整理】SSS 2009-01-26

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[科学美国人60秒] 【整理】SSS 2009-01-26

SSS 20090126

sss


Tune in every weekday for quick reports and commentaries on the world of science-- it will just take a minute.


In a study published in the journal Science, researchers found that a brown pollution cloud over south Asia and the Indian Ocean is largely the result of burning wood and dung for cooking and heating. Cynthia Graber reports




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【整理】SSS 2009-01-26【整理人】ivyxk

 

Transcript

 

 This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute.

 

There's a huge, gunky brown cloud that lingers over south Asia and the Indian Ocean each winter. It’s been known to cause respiratory diseases and even cancers in India and China. But scientists didn't really know what was in it. Now they do. Researchers from Stockholm University and colleagues published the results in the January 23rd issue of the journal Science.

The cloud contains black particles called carbonaceous aerosols—basically carbon soot. The team used radiocarbon analysis to figure out what parts of the soot come from biomass and what comes from fossil fuels. Biomass typically comes from burning forests for agriculture or burning wood in stoves. And fossil fuel particulates come from sources such as diesel engines or burning coal.

The investigators were surprised to discover that a large percentage of the soot, from almost half to two-thirds, comes from burning biomass like wood and dung for cooking and heat, rather than from coal power plants. Scientists say the good news is that these particles only remain in the atmosphere for a few days or weeks at a time. So once societies can figure out how to reduce biomass burning, that brown sooty haze—and the illnesses it causes—might disappear.

 

Thanks for the minute for Scientific American's 60-Second Science. I'm Cynthia Graber.

 

[ 本帖最后由 ivyxk 于 2009-1-29 15:32 编辑 ]

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Homework

There's a huge gunky brown cloud that lingers over south Asia and the Indian ocean each winter.It's been known to cause respiratory diseases and even cancers in India and China.But scientists didn't really know what was in it,now they do.Researchers from Stockholm University and collegues published the results in the January 23rd issue of the Journal Science.

 

The cloud contains black particles called Carbonaceous / basically carbon /.The team used radio-carbon analysis to figure out what parts of the / come from biomass and what comes from fossil fuels.Biomass typically comes from burning forests for agriculture or  burning wood in stoves and fossil fuel particulates come from sources such as diesel engines or burning coal.The investigators were surprised to discover that a large percentage of the / from almost half to two thirds comes from burning biomass like wood and dung for cooking in heat rather than from coal power plants.Scientists say the good news is that these particles only remain in the atmosphere for a few days or weeks at a time.So once societies can figure out how to reduce biomass burning,that brown / / and the illnesses it causes might disappear.

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HW

 

This is Scientific American's 60-Second American. I'm Cynthia Graber. This will just take a minute

 

There is a huge gunk and brown cloud that lingers over south Asia and the Indian Ocean each winter.

It's been known to cause respiratory diseases and even cancers in Indian and China.

But scientists didn't really know what was in it. Now they do.

Researchers from * university and colleagues published the results in the January 23rd issue of the journal Science.

The cloud contains black particles called carbonatious * basically carbon *

The team use radio carbon analysis to figure out what parts of the * come from biomass and what comes from fossil fuels

Biomass typically comes from burning farms from agriculture or burning wooden stones.

Fossil fuel particular comes from sources such as diesel * or burning coal

The investigators were surprised to discover that a large percentage of * from almost half to two thirds comes from burning biomass like wood and dung for cooking and heat rather than from co-pair plants

Scientists say the good news is that these particles only remain in the atmosphere for a few days or weeks at the time

So once scientists can figure out how to reduce biomass burning that brown city * and illness it causes might disappear.

 

Thanks for the minute for Scientific American's 60-Second American. I'm Cynthia Graber.

 

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on WONDERFUL

There's a huge gunky brown cloud that lingers over south Asia and the Indian ocean each winter. It's been known to cause respiratory diseases and even cancers in India and China. But scientists didn't really know what was in it, now they do. Researchers from Stockholm University and collegues published the results in the January 23rd issue of the Journal Science.

The cloud contains black particles called carbonaceous aerosols basically carbon soot. The team used radio-carbon analysis to figure out what parts of the soot come from biomass and what comes from fossil fuels. Biomass typically comes from burning forests for agriculture or burning wood in stoves and fossil fuel particulates come from sources such as diesel engines or burning coal. The investigators were surprised to discover that a large percentage of the soot from almost half to two thirds comes from burning biomass like wood and dung for cooking in heat rather than from coal power plants. Scientists say the good news is that these particles only remain in the atmosphere for a few days or weeks at a time. So once societies can figure out how to reduce biomass burning, that brown sooty haze and the illnesses it causes might disappear.
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homework

This is Scientific American's 60-Second Science, I am Cynthia Graber, this will just take a minute.
    There is huge / brown cloud that lingers over South Asia and Indian Ocean each winter. It's been known to cause / diseases and even cancers in India and China. But scientists didn't really know what was in it. Now they do. Researchers from / University and Colleagues published the results in the January 23rd issue of the Journal Science. The cloud contains black particles called / /, basicly carbon /. The team use radiocarbon analysis to figure out what parts of the / biomass and what comes from fossil fuels. Biomass typically comes from burning forest or agriculture or buring wood /. And fossil fuel particulars come from sources such as diesel engine or buring coal.
    Investigators were surprised to discover that a large percentage / from almost half to 2/3, comes from burning biomass like wood and down for cooking and heat, rather than from coal power plants. Scientists say the good news is that this particals only remain in atmosphere for a few days or a week at the time. So once societies can figure out  how to reduce biomass burning, that brown / hits and almost causes might disappear.
   Thanks for the minute, for Scientific American's 60-Second Science, I am Cynthia Graber.
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gunky 是什么意思啊? 字典里查不到啊
爱听写,爱英语,爱生活!
gunky The consistency of the matter in your eyes when you wake up from a hard sleep. When I woke up this morning, my eyes were all gunky something like hazy meantioned in the last para
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HW

This is Scientific American 60 second science, I'm Cynthia Gribber, this will just take a minute. There's a huge gunky brown cloud that lingers over South Asia and the Indian ocean each winter. It's been known to cause respiratory diseases and even cancers in India and China, but scientists didn't really know what was in it. Now they do. Reseachers from Stockholm university and collegus published the results in the January 23rd of the journal Science. The cloud contains black particles called carbinatious arrasous, basicaly carbon sud. The team used radio carbon analysis to figure out what parts of the sud come from biomass and what comes from fossil fuels. Biomass typicall comes from burning fires for agriculture or burning wood in stoves, and fossil fuel, particular, it's coming from sources such as dease ? or burning coal. The investigators were surperised to discover, that a large percentage of the sud, from almost half to two-thirds, comes from burning biomass like wood and dunk for cooking and heat rather than from coal pare plants. Scientists say the good news is that these particles only remain in the atmosphere for a few days or weeks at a time. So once societies can figure out how to reduce biomass burning, that brown suddy haze and the ? it causesx might disappear. Thanks for the minute, for Scientific American 60 second science, I'm Cynthia Gribber.

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HOMEWORK

This is Scientific American 60-Second American. I'm Cynthia Graber. This will just take a minute.

 

There is a huge gunky brown cloud that lingers over South Asia and the Indian Ocean each winter. It's been known to cause respiratory diseases and even cancers in India and China, but scientists didn't really know what was in it. Now they do. Researchers from Stockholm University and colleagues published the result in the January 23rd issue of the journal Science.

 

The cloud contains black particles called carbonaceous               , basically carbon sub. The team used radio carbon analysis to figure out what parts of the sub come from biomass and what comes from fossil fuels. Biomass typically comes from burning fires from agriculture or burning wood in stoves and fossil fuel particular come from sources such as diesel engines or burning coal. The investigators were surprised to discover that a large percentage of the sub, from almost 1/2 to 2/3, comes from burning biomass like wood and dung for cooking and heat rather than from coal power plants.

 

Scientists say the good news is these particles only remained in the atmosphere for a few days or weeks at a time. So once society can figure out how to reduce biomass burning, that brown                and the illnesses it causes will disappear.

  

Thanks for the minute. For Scientific American 60-Second American, I'm Cynthia Graber.

明日の笑顔をだすために頑張ります
好栏目推荐之美国口语俚语

HW

This is Scientific American sixty-second science,I'm CG.This will just take a minute.


There is a huge gunky brond cloud that lingers over the South Ascia and the Indian Ocean each winter. It is been known to cause respechorid diseases and even cancers in Indian and China. But scientists didn't really know what was in it, now they do. Researchers from Stacon University in collages published the results in the January 22 issue of the Journal Science.


The cloud contains black particles called carbinations airsource basically carbincerd. The team use radio carbin analysis to figure out what part of the third conference biomass and what coms from fossile files. Biomass typically come from burning fires for agriculture or burning .... and fossile fill perticulars come from sources such as dislangen, the burning coal. Invesgators were surprised to discover that a large percent of the third from almost half to 2/3 comes from burning biomass like wood and dunk for cooking and heat rather than corral parllplants. Scientists say the good news that this particles only remain the atmosphere for few days a week at the time. So once the society figure out how reduce biomass burning that brown thirty heads and owners calles may disappear.


Thanks for the minute, for Scientific American sixty-second science. I am CG.

Homework

 

This broadcast is brought to you by scientific Americans instant ...For more information,go to  instant......com.

 

This is Scientific Americans Sixty Second Science.I'm Cindy Graver.This.. just take a minute.

 

There's a huge ...cloud that lingers over south Asia and the Indian Ocean each winter.It's been known to cause ...troy diseases and even cancers in India and China.

 

But scientist didn't really know what was in it.Now they do.Researchers from Stockholm(the capital of Sweden) University and colleagues published the results in the January 23rd issue, the Journal Science.The cloud contains black particals called carbon...,basicly carbon surd....analysist to figure out what parts of the surd comes from ...and what comes from fossil feuls....typicly comes from burning ...agriculture or burning wood and .... And fossil fuels ..come from sources such as ...or burning cold.The investigaters were surprised to discover that a large percentage of the surd, from almost half to two thirds comes from burning ..like wood and dung(牛粪,用于制造沼气。) for cooking and heat rather than from cold ...plants Scientists say the good news is that these particles only remain in the atmosphere for a few days or weeks at a time.

 

So once societies can figure out how reduce...burninig, that...and the...it causes might disappear.

 

Thanks for the minute.For Scientific Americans Sixty Seconds Science,I'm Cindy Graver.

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