The most problematic greenhouse gasses related to animal farming are carbon dioxide, which is produced through practices such as deforestation, the destruction of natural habitats and the damaging of soil, methane, which is produced by the digestive system of ruminant animals through the process of enteric fermentation, and nitrous oxide, which comes largely from manure and fertiliser use. It is currently estimated that animal farming accounts for somewhere between 14.5 per cent and 18 per cent of total emissions.16 This means that animal farming is responsible for more emissions than the
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