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标题: [科学美国人60秒] 【整理】SSS 2008-02-13 [打印本页]

作者: putclub    时间: 2008-2-14 12:29     标题: 【整理】SSS 2008-02-13

【整理】SSS 2008-02-13

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Plants Don't Like Greenhouse Effect

Fossil remains indicate that insects actually eat more plant material when the planet is warmer. Karen Hopkin reports.


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【整理】SSS 2008-02-13【整理人】cyan1120

Transcript

 

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

 

Seems like every other week brings news that global warming is gonna  be bad for some poor animal or other. But plants? Well, I guess I was thinking that plants would welcome the heat. I mean, global warming is caused by greenhouse gases. And plants live in greenhouses. So everyone’s happy. Well, according to a new study, published in the February 12 issue of the Proceedings of the National Academy of Sciences, I was wrong. Or at least not quite right. Because plants, too, are likely to face problems as the earth heats up. And their biggest problem may be: insects.

 

Scientists were looking at the fossilized remains of leaves that fell off trees about 55 million years ago. At that time, the planet was undergoing a period of warming. The scientists found that as the temperatures rose, the leaves looked more…nibbled. Seems that with more CO2 in the atmosphere, plants take up more carbon. That actually makes their leaves less nutritious for plant-munching bugs—so the insects just eat more. So, a warmer planet will be home to some hungry bugs. Which I dare say will not please the trees. Or anyone else who relies on plants for food—which includes, ultimately, all of us.

 

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

 

 

[ 本帖最后由 cyan1120 于 2008-2-26 21:25 编辑 ]
作者: lochker    时间: 2008-2-14 14:25

homewrok smile.gif

This is Scientific Americans' 60-Second Science. I'm Karen Hopkin. This will just take a minute.

Seems like every other week brings news that global warming is gonna be bad for some poor animal or other. But plants, well, I guess I was thinking the plants would welcome the heat. I mean, global warming is caused by greenhouse gases, and plants live in green houses, so everyone's happy. Well, according to a new study, published in the February 12 issue of the Proceeding of the National Academy of Sciences, I was wrong, or at least not quite right. Because plants, too, are likely to face the problems as the earth heats up, and their biggest problem may be insects. Scientists were looking at the fossilized remains of leaves that fell off trees about 55 million years ago. At that time, the planet was undergoing a period of warming. The scientists found that the temperatures rose, the leaves looked more nibbled. Seems that with more CO2 in the atmosphere, plants take up more carbon, that actually make their leaves less nutritious for plant-munching bugs, so the insects just eat more. So a warmer planet will be home to some hungry bugs, which I dare say will not please the trees or anyone else who relies on plants for food, which includes, ultimately, all of us.

Thanks for the minute for Scientific Americans' 60-Second Science. I'm Karen Hopkin.
作者: skyRo    时间: 2008-2-14 15:35

hw smile.gif

This is Scientific American’s 60 second science. I’m Karen Hopkin. This’ll just take a minute.

Seems like every other week brings news that a global warming is gonna be bad for some poor animal or other. But plants, well, I guess everyone’s thinking the plants will welcome the heat. I mean global warming is caused by greenhouse gases in plants living greenhouses. So everyone is happy. Well according to a new study published in the February 12th issue of Proceedings of National Academy of Sciences, I was wrong or at least not quite right. Because plants too are likely to face problems that the earth heats up and the biggest problem may be insects. Scientists are looking at the fossilized remains of leafs that fell off trees about 55 million years ago. At that time, the plant was undergoing a period of warming. The scientists found that as temperatures rose, the leaves look more nibble. Seems with more CO2 in the atmosphere, plants take up more carbon that actually makes the leaves less nutritious for plant * bugs. So the insects just eat more. So what * plant will be homes to some hungry bugs which I dare say will not please the trees or anyone else who relies on plants for food which includes ultimately all of us.

Thanks for the minute, for Scientific American’s 60 second science. I’m Karen Hopkin.

作者: littledyy    时间: 2008-2-14 16:48

homewoke
-------------

This is Scientific American’s 60 second science. I’m Karen Hopkin. This’ll just take a minute.

Seems like every other week brings news the global warming is gonna be bad for some poor animal or other. But plants, well I guess, I was thinking the plants would welcome the heat. I mean, global warming is caused by greenhouse gases, and plants live in greehouses, so everyone's happy. Well, according to a new study, published in the Feburary 12 issued of the Proceeding of the National Academy of Sciences, I was wrong, or at least, not quite right, because plants, too, likely to face the problems as the earth heats up, and the biggest problem may be insects. Scientists were looking at the fossilized remains of the leaves that fell off tress about 15 million years ago.

At that time, plantet was undergoing a period of warming. The scientists found that the temporature rose. The leaves looked more nibbled seems with more CO2 in the atmosphere, plants take up more carbon that actualy makes their leaves less nuritious for plant-munching bugs, so the insects just eat more. So warm planet will be home to some hungry bugs which I dare say will not pleased trees or anyone else relies on plants for food, which includes, ultimately, all of us .

Thanks for the minute for Scientific Americans' 60-Second Science. I'm Karen Hopkin.
作者: DaveyZhou    时间: 2008-2-14 18:00

On lochker

This is Scientific American‘s 60-Second Science. I'm Karen Hopkin. This will just take a minute.

Seems like every other week brings news that global warming is gonna be bad for some poor animal or other. But plants, well, I guess I was thinking the plants would welcome the heat. I mean, global warming is caused by greenhouse gases, and plants live in green houses, so everyone's happy. Well, according to a new study, published in the February 12 issue of the Proceedings of the National Academy of Sciences, I was wrong, or at least not quite right. Because plants, too, are likely to face / problems as the earth heats up, and their biggest problem may be insects. Scientists were looking at the fossilized remains of leaves that fell off trees about 55 million years ago. At that time, the planet was undergoing a period of warming. The scientists found that as the temperatures rose, the leaves looked more nibbled. Seems that with more CO2 in the atmosphere, plants take up more carbon, that actually make their leaves less nutritious for plant-munching bugs, so the insects just eat more. So a warmer planet will be home to some hungry bugs, which I dare say will not please the trees or anyone else who relies on plants for food, which includes, ultimately, all of us.

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

作者: uivb    时间: 2008-2-14 18:59

on above
This is Scientific American‘s 60-Second Science. I'm Karen Hopkin. This will just take a minute.

Seems like every other week brings news that global warming is gonna be bad for some poor animal or other. But plants, well, I guess I was thinking the plants would welcome the heat. I mean, global warming is caused by greenhouse gases, and plants live in green houses, so everyone's happy. Well, according to a new study, published in the February 12 issue of the Proceedings of the National Academy of Sciences, I was wrong, or at least not quite right. Because plants, too, are likely to face problems as the Earth heats up, and their biggest problem may be insects. Scientists were looking at the fossilized remains of leaves that fell off trees about 55 million years ago. At that time, the planet was undergoing a period of warming. The scientists found that as the temperatures rose, the leaves looked more nibbled. Seems that with more CO2 in the atmosphere, plants take up more carbon, that actually make their leaves less nutritious for plant-munching bugs, so the insects just eat more. So a warmer planet will be home to some hungry bugs, which I dare say will not please the trees or anyone else who relies on plants for food, which includes, ultimately, all of us.

Thanks for the minute for Scientific American‘s 60-Second Science. I'm Karen Hopkin.
作者: tmaczhoujh    时间: 2008-2-14 20:05

on DaveyZhou


This is Scientific American‘s 60-Second Science. I'm Karen Hopkin. This will just take a minute.

Seems like every other week brings news that global warming is gonna be bad for some poor animal or other. But plants, well, I guess I was thinking that plants would welcome the heat. I mean, global warming is caused by greenhouse gases, and plants live in green houses, so everyone's happy. Well, according to a new study, published in the February 12 issue of the Proceedings of the National Academy of Sciences, I was wrong, or at least not quite right. Because plants, too, are likely to face / problems as the earth heats up, and their biggest problem may be insects. Scientists were looking at the fossilized remains of leaves that fell off trees about 55 million years ago. At that time, the planet was undergoing a period of warming. The scientists found that as the temperatures rose, the leaves looked more nibbled. Seems that with more CO2 in the atmosphere, plants take up more carbon, that actually make their leaves less nutritious for plant-munching bugs, so the insects just eat more. So a warmer planet will be home to some hungry bugs, which I dare say will not please the trees or anyone else who relies on plants for food, which includes, ultimately, all of us.

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

作者: Avril2006    时间: 2008-2-15 09:07

on above

This is Scientific American‘s 60-Second Science. I'm Karen Hopkin. This will just take a minute.

Seems like every other week brings news that global warming is gonna be bad for some poor animal or other. But plants, well, I guess I was thinking that plants would welcome the heat. I mean, global warming is caused by greenhouse gases, and plants live in green houses, so everyone's happy. Well, according to a new study, published in the February 12 issue of the Proceedings of the National Academy of Sciences, I was wrong, or at least not quite right. Because plants, too, are likely to face / problems as the earth heats up, and their biggest problem may be insects. Scientists were looking at the fossilized remains of leaves that fell off trees about 55 million years ago. At that time, the planet was undergoing a period of warming. The scientists found that as the temperatures rose, the leaves looked more nibbled. Seems that with more CO2 in the atmosphere, plants take up more carbon, that actually makes their leaves less nutritious for plant-munching bugs, so the insects just eat more. So a warmer planet will be home to some hungry bugs, which I dare say will not please the trees or anyone else who relies on plants for food, which includes, ultimately, all of us.

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





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