Sweden helps SKorea convert food waste into biogas

(AP) -- The South Korean city of Ulsan lets water generated from processing food waste run off into the ocean, which can generate methane gas harmful to the environment.

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<p><a href="http://www.physorg.com/news162107813.html">Sweden helps SKorea convert food waste into biogas</a></p> <p>(AP) -- The South Korean city of Ulsan lets water generated from processing food waste run off into the ocean, which can generate methane gas harmful to the environment.</p>