Board logo

标题: [科学美国人60秒] 【整理】SSS 2008-07-02 [打印本页]

作者: qingchengshan    时间: 2008-7-3 07:52     标题: 【整理】SSS 2008-07-02

SSS 2008-07-02

user posted image


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


Scientists thought that only bacteria that live where there's no oxygen produced methane, a greenhouse gas. But new research shows that ocean bacteria also give off the gas. Karen Hopkin reports



【电信用户1】在线播放和下载

Download mp3


【电信用户2】下载
Download mp3

【网通/教育网用户】在线播放和下载


Download mp3



Standard版听写规则(新手必读)

版主提示:
一、若是自己的听写稿, 请发帖时标注'Homework'.
二、若是改稿, 请发帖时标注'on 某某人'并在修改处标红.
三、为了达到最快的下载速度,推荐使用迅雷高速下载本站音频/视频材料.

 

【整理】SSS 2008-07-02【整理人】ZPC224

Transcript

 

This is Scientific American's 60-second Science, I am Karen Hopkin. This'll just take a minute.

 

Methane is a greenhouse gas that traps heat even better than carbon dioxide. It comes from a variety of sources, including fossil fuel production and even farming. Cows give off methane, you know, after they eat. Even the surface waters of the ocean contain substantial amounts of this gas. But where marine methane comes from was a mystery. Until now. Scientists collected seawater off the coast of Hawaii. And they found that bacteria that live in these waters scarf up certain phosphorous-containing chemicals, and then release methane as a byproduct. The results appear online in the journal Nature Geoscience. What’s surprising is that scientists had previously thought that methane is only produced by bacteria that live in places where there is no oxygen, think of the smell you associate with a swamp or with the muck at the bottom of a murky pond. This marine methane could contribute to global warming by adding more greenhouse gases to the atmosphere. What’s worse, the hotter it is, the more stressed these seafaring bacteria get, and the more methane they’re likely to put out. Which was certainly not the kind of feedback that atmospheric scientists were hoping to get.

 

 

Thanks for the minute,for Scientific American's 60-Second-Science.I'm Karen Hopkin.

[ 本帖最后由 zpc224 于 2008-7-4 20:55 编辑 ]
作者: dklove    时间: 2008-7-3 08:21

HW:


This is Scientific Americans Sixty Seconds Science. I'm Karren Hopkin. It will just take a minute.


Methane is a greenhouse gas that traps heat even better than carbon dioxide. It comes from variety of sources including fossil fuel production when even farming. Caws give off methane you know, after they eat.

 

Even the surface water of the ocean contains substantial amounts of this gas. But where marine methane comes from was a mystery until now. Scientists collected sea water of the coast of Hawaii. And they found the bacteria that living in these waters scare from certain fast-rate-containing chemicals. And that released methane as a by-product. The results appear online in the journal Nature * Science.

 

What's surprising is that scientists previously thought that methane is only produced by bacteria that live in places where there is no oxygen. Think of these * associated with the swan or with the * that abound with murky pound. This marin methane could contributed to global warming by adding more greenhouse gases to the atmosphere. What's worse, the harder it is, from where stress the sea fill in the bacteria again and more methane in there is likely to put out which will certainly not the kind of feed back that atmosphere scientists were hoping to get.

 

Thanks for the minute for Scientific Americans Sixty Seconds Science. I'm Karren Hopkin.

[ 本帖最后由 dklove 于 2008-7-3 08:27 编辑 ]
作者: 笨鸟追日    时间: 2008-7-3 09:13

on  dklove

 

This is Scientific Americans Sixty Seconds Science. I'm Karren Hopkin. It will just take a minute.


Methane is a greenhouse gas that traps heat even better than carbon dioxide. It comes from a variety of sources including fossil fuel production when even farming. Caws give off methane you know, after they eat.

 

Even the surface water of the ocean contains substantial amounts of this gas. But where marine methane comes from was a mystery until now. Scientists collected sea water of the coast of Hawaii. And they found the bacteria that living in these waters scare from certain fast-rate-containing chemicals. And that released methane as a by-product. The results appear online in the journal Nature Geo- Science.

 

What's surprising is that scientists previously thought that methane is only produced by bacteria that live in places where there is no oxygen. Think of these smell associated with the swan or with the market that abound with murky pound. This marin methane could contributed to global warming by adding more greenhouse gases to the atmosphere. What's worse, the harder it is, the more stress the sea  fill in the bacteria gap and the more methane / is likely to put out which will certainly not the kind of feed back that atmosphere scientists were hoping to get.

 

Thanks for the minute for Scientific Americans Sixty Seconds Science. I'm Karren Hopkin.

[ 本帖最后由 笨鸟追日 于 2008-7-3 09:16 编辑 ]
作者: bigxiami    时间: 2008-7-3 10:04     标题: on 笨鸟追日

This is Scientific Americans Sixty Seconds Science. I'm Karren Hopkin. This will just take a minute.


Methane is a greenhouse gas that traps heat even better than carbon dioxide. It comes from a variety of sources including fossil fuel production or even farming. Caws give off methane you know, after they eat.

 

Even the surface water of the ocean contains substantial amounts of this gas. But where marine methane comes from was a mystery until now. Scientists collected sea water of the coast of Hawaii. And they found the bacteria that living in these waters * off certain *-containing chemicals, and then released methane as a by-product. The results appear online in the journal Nature Geo- Science.

 

What's surprising is that scientists previously thought that methane is only produced by bacteria that live in places where there is no oxygen. Think of the smell associated with a swamp or with the muck at the bottom of a murky pond. This marin methane could contributed to global warming by adding more greenhouse gases to the atmosphere. What's worse, the hotter it is, the more stress these sea-faring bacteria get and the more methane they're likely to put out which was certainly not the kind of feed back that atmospheric scientists were hoping to get.

 

Thanks for the minute for Scientific Americans Sixty Seconds Science. I'm Karren Hopkin. [ 本帖最后由 bigxiami 于 2008-7-3 10:14 编辑 ]
作者: byatbj07    时间: 2008-7-3 10:15     标题: on 笨鸟追日

This is Scientific Americans 60-Seconds Science. I'm Karren Hopkin. It will just take a minute.


Methane is a greenhouse gas that traps heat even better than carbon dioxide. It comes from a variety of sources including fossil fuel production when even farming. Cows give off methane, you know, after they eat.

 

Even the surface waters of the ocean contains substantial amounts of this gas. But where marine methane comes from is a mystery until now. Scientists collected sea water off the coast of Hawaii. And they found the bacteria / living in these waters scarf up certain phosphorous-containing chemicals. And then release methane as a by-product. The results appear online in the journal Nature Geo- Science.

 

What's surprising is that scientists previously thought that methane is only produced by bacteria that live in places where there is no oxygen. Think of these smell associated with the swamp or with the market that abound with mucky pond. This marine methane could contribute to global warming by adding more greenhouse gases to the atmosphere. What's worse, the hotter it is, the more stressed the seafaring bacteria get and the more methane they are likely to put out which will certainly not the kind of feedback that atmosphere scientists were hoping to get.

 

Thanks for the minute for Scientific Americans Sixty Seconds Science. I'm Karren Hopkin.


作者: byatbj07    时间: 2008-7-3 10:24     标题: on bigdaxiami

This is Scientific Americans Sixty Seconds Science. I'm Karren Hopkin. This will just take a minute.


Methane is a greenhouse gas that traps heat even better than carbon dioxide. It comes from a variety of sources including fossil fuel production or even farming. Cows give off methane you know, after they eat.

 

Even the surface waters of the ocean contains substantial amounts of this gas. But where marine methane comes from was a mystery until now. Scientists collected sea water of the coast off Hawaii. And they found the bacteria / living in these waters scarf up certain phosphorous-containing chemicals.And then released methane as a by-product. The results appear online in the journal Nature Geo- Science.

 

What's surprising is that scientists previously thought that methane is only produced by bacteria that live in places where there is no oxygen. Think of the smell associated with a swamp or with the muck at the bottom of a murky pond. This marin methane could contributed to global warming by adding more greenhouse gases to the atmosphere. What's worse, the hotter it is, the more stressed these sea-faring bacteria get and the more methane they're likely to put out which was certainly not the kind of feedback that atmospheric scientists were hoping to get.

 

Thanks for the minute for Scientific Americans Sixty Seconds Science. I'm Karren Hopkin. [ 本帖最后由 byatbj07 于 2008-7-3 10:26 编辑 ]
作者: cqheyan    时间: 2008-7-3 11:14

 on byatbj07

 

This is Scientific Americans Sixty Seconds Science. I'm Karren Hopkin. This will just take a minute.


Methane is a greenhouse gas that traps heat even better than carbon dioxide. It comes from a variety of sources including fossil fuel production or even farming. Cows give off methane you know, after they eat.

 

Even the surface waters of the ocean contains substantial amounts of this gas. But where marine methane comes from was a mystery until now. Scientists collected sea water of the coast off Hawaii. And they found the bacteria that're living in these waters scarf up certain phosphorous-containing chemicals.And their released methane is a by-product. The results appear online in the journal Nature Geo- Science.

 

What's surprising is that scientists previously thought that methane is only produced by bacteria that live in places where there is no oxygen. Think of the smell associated with a swamp or with the muck at the bottom of a murky pond. This marin methane could contribut to global warming by adding more greenhouse gases to the atmosphere. What's worse, the hotter it is, the more stressed these sea-faring bacteria get and the more methane they're likely to put out which was certainly not the kind of feedback that atmosphere scientists were hoping to get.

 

Thanks for the minute for Scientific Americans Sixty Seconds Science. I'm Karren Hopkin.
作者: WONDERFUL.    时间: 2008-7-3 12:26     标题: on Cqheyan

This is Scientific American's 60-second Science, I am Karen Hopkin. This'll just take a minute.

 

Methane is a greenhouse gas that traps heat even better than carbon-dioxide.It comes from a variety of sources including fossil fuel production and even farming.Cows give off methane you know after they eat.Even the surface waters of the ocean contain substantial amounts of this gas,but where marine methane comes from was a mystery until now.Scientists collected seawater off the coast of Hawaii,and they found that bacteria that live in those waters scarf up certain phosphorous-containing chemicals,and then release methane as a by-product.The results appear online in the Journal Nature Geoscience.What's surprising is that scientists had previously thought that methanes are only produced by bacteria that live in places where there is no oxygen.Think of the smell you associate with a swamp or with the muck at the bottom of a murky pond.This marine methane could contribute to global warming by adding more greenhouse gases to the atmosphere.What's worse,the hotter it is,the more stressed these seafaring bacteria get and the more methane they are likely to put out,which was certainly not the kind of feedback that atmosphere scientists were hoping to get.

 

Thanks for the minute,for Scientific American's 60-Second-Science.I'm Karen Hopkin.


作者: hanqialice    时间: 2008-7-3 15:04     标题: homework

This is Scientific American’s 60 seconds’ science. I’m Karen Hopkin.

 

This will just take a minute.

 

Nothing is the green house gas that traps heat even better than carbon dioxide. It comes from a variety of sources, including the fusel fuel production, and even farming. Cows give off methane you know, after they eat.

 

Even the surface water of the ocean contains substantial amounts of this gas, but where marine methane comes from was a mystery until now. Scientists collected sea water off the coast of Hawaii, and they found the bacteria that living in these waters scarf up certain phosphorous-containing chemicals and they release methane as byproduct. The results appear on line in the journal Nature Geo-science.

 

What’s surprising is that the scientists previously thought that methane is only produced by bacteria living in places where there is no oxygen. They get this many associated with the swamp or with the mud at the bottom of a murky pond.

 

This marine methane could be contributed to global warming by adding more greenhouse gases to the atmosphere. What’s worse, the hotter it is, the more stress the sea f bacteria get and the more methane they are likely to put out, which is certainly not the feedback the atmosphere scientists were hoping to get.

 

Thanks for the minute,for Scientific American's 60-Second-Science.I'm Karen Hopkin.

 

scarf up 吃掉 scoff 的变体 美俚 phosphorous 磷

 

 






欢迎光临 普特英语听力论坛 (http://forum.putclub.com/) Powered by Discuz! 7.0.0