Underwater animals fart greenhouse gas: study

Humans and farm animals were known to emit harmful greenhouse gases through digestion, but German researchers said Tuesday that aquatic worms and bugs are also culprits, releasing laughing gas.

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<p><a href="http://www.physorg.com/news155287675.html">Underwater animals fart greenhouse gas: study</a></p> <p>Humans and farm animals were known to emit harmful greenhouse gases through digestion, but German researchers said Tuesday that aquatic worms and bugs are also culprits, releasing laughing gas.</p>