顶楼主。 g*r/ u;
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： KW:r;BFx
These new cow fart packs from Argentina could save the world `1_FQnm)
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This is not a joke, but it is funny. It's also practical. Yl B["@\[B
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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. eU"mG3 __
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In other words, cow fartpacks are here. n% U9iwJ.
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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. ;;6\q!7`
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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. YRu%j4Tx
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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. aZC*7AK
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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. aKD;1| )
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He doesn't think we're going to live in fart-powered cities before 2070, but he can "imagine a future farm with a couple of these cows used to provide energy to satisfy the farm’s needs." %)dI2 J^Xf
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Just fart-powered farms, then. Excuse me？ u-1@ ~Z
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我觉得还不是太搞，苹果不也想出iFart吧。祝大家周末开心。 =G[ H,;W
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