“A University of Chicago study recently found that our food choices contribute at least as much as our transportation choices to global warming. More recent and authoritative studies by the United Nations and the Pew Commission show conclusively that globally, farmed animals contribute more to climate change than transport. According to the UN, the livestock sector is responsible for 18 percent of greenhouse gas emissions, around 40 percent more than the entire transport sector - cars, trucks, planes, trains, and ships - combined. Animal agriculture is responsible for 37 percent of anthropogenic methane, which offers twenty-three times the global warming potential (GWP) of CO2, as well as 65 percent of anthropogenic nitrous oxide, which provides a staggering 296 times the GWP of CO2. The most current data even quantifies the role of diet: omnivores contribute seven times the volume of greenhouse gases that vegans do.”
