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Las vacas están contaminando

  • M
    María Tapias
    On Fri, 2 Feb, 2018 at 4:43 PM

    El gas metano emitido por las vacas es el principal generador de gases de efecto invernadero.

  • M
    Mike Metcalf
    On Sat, 3 Feb, 2018 at 2:30 PM
    You know what they say... the one who smelt it, dealt it.

     

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