Cow Backpacks Trap Methane Gas

(PhysOrg.com) -- In an attempt to understand the extent of cow flatulence on global warming, scientists in Argentina are strapping plastic bags to the backs of cows to capture their emissions.

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<p><a href="http://www.physorg.com/news135003243.html">Cow Backpacks Trap Methane Gas</a></p> <p>(PhysOrg.com) -- In an attempt to understand the extent of cow flatulence on global warming, scientists in Argentina are strapping plastic bags to the backs of cows to capture their emissions. </p>