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开始以为是笑话,上网一查,是真事,阿根廷国家农技所的项目,并预言2070年后大家生活的城&乡没准会以屁甲烷为能源,原文如下: I 0x`H)DA
These new cow fart packs from Argentina could save the world `bBfNI?3d*
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This is not a joke, but it is funny. It's also practical. nEeQL~:
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Argentina's National Institute for Agricultural Technology (INTA) has invented a way to convert cow flatulence into usable energy, and it involves putting a plastic backpack on a cow. 7<Z~\3x
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In other words, cow fartpacks are here. d;*OO xQV
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The reason this is not a joke is because it is actually happening, but also because cows are responsible for a remarkable amount of global methane emissions, which are a major cause of global warming. It's a real problem. 8ItCfbqa6
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According to the EPA, cow farting (and burping, actually a lot of it is burping) accounts for 5.5 million metric tons of methane per year in the United States — that's 20 percent of total US methane emissions. GF$rPY[
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Here's how the fartpacks work: tubes run from the backpack into the cows' rumen (or biggest digestive tract). They extract about 300 liters of methane a day, which is enough to run a car or a fridge for about 24 hours. dM>j<JC=
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Pablo Soranda, INTA press officer, told that the project is more about making a point than it is converting people to a way of life. !HT>
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