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Originally Posted by SpectralJulianIsNotDead
Yeah I saw Waterworld. Dennis Hopper is the villain! 
To vegetarians being against cows for their emissions- isn't that a good argument for killing cows? And isn't killing cows a good argument for eating cows? I mean, they shouldn't go to waste.
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What they are particularly against is the breeding and raising of herd animals for slaughter in ranch and farm environments.
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I'm not the biggest fan of PETA, but they also espouse grazing animal emissions as a key element of climate change as well, and apparently there is science to back up the claim. Of course, the total climate effect of grazing animals is not just from biological methane emissions, but rather a culmulative effect when one also considers the energy expended to cut down trees, clear away plant and animal wildlife to make the gazing land, as well as the upkeep of the ranch.
And of course as many know, much of the Amazon rainforest has been cleared away to make grazing lands for herd animals. Although, most South American deforestation is actually due to the harvesting of trees that are burnt for charcoal in the process of making steel.