Thorn said:The article went on to say- [quote author= guardian article]Not least of these is the environment – and while the tabloid press has had a field day with screeching headlines about her belief that beef farming is unsustainable, it has overlooked one hugely important fact. Methane emissions from animal agriculture are a massive factor in global warming (19% of total global greenhouse emissions).

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And they continue to talk about it, while avoiding the fact that for the first time in our human history we are massively burning methane, thus destroying this massive factor in global warming.
I don't know about statistics, but I doubt that animals produce more methane then we are burning now. Just look how many gas pipelines there are, and there will be in the future.