America’s 180 million or so Rovers and Fluffies
gulp down about 25 percent of all the animal-derived calories
consumed in the United States each year, according to Okin’s calculations. If
these pets established a sovereign nation, it would rank fifth in global
meat consumption.
Needless to say, producing that meat — which requires
more land, water and energy and pollutes more than plant-based food —
creates a lot of greenhouse gases: as many as 64 million tons annually,
or about the equivalent of driving more than 12
million cars around for a year. That doesn’t mean pet-keeping must be eschewed
for the sake of the planet, but “neither is it an unalloyed good,” Okin wrote
in a study published this week in PLOS One.
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