FART PACKS FOR COWS

he ‘fartpacks’ extract 300 litres of methane a day from a tube inserted into the cow's digestive tract and convert it into enough energy to run a car for 24 hours.

Read more: http://www.dailymail.co.uk/sciencetech/article-2606956/Now-THATS-wind-power-Cows-wear-BACKPACKS-capture-emissions-miniature-power-stations.html#ixzz2zBQTQQNA
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