Guardian: Instead of the steaks and pork chops in our fridges, should we be investing in clean, green protein? Well, yes. Methane from livestock is responsible for 14% of global warming, and the gas is 25 times more potent than CO2. The more meat and dairy you eat from ruminants, particularly cows, the more burping and farting you are responsible for. The 2014 documentary Cowspiracy focuses on the idea that this is the great neglected greenhouse gas source.
By 2050, experts predict, the demand for meat...