At any one time we share the planet with 1 billion pigs, 1.3 billion cattle, 1.8 billion sheep and goats and 15.4 billion chickens: twice as many as there are humans to eat them.
Rather than increasing our capacity to feed people, the growth in meat production is a serious threat to food security. Growing plants to feed animals, rather than humans, uses more land and water to produce less protien than growing plants for direct human consumption.
The demand for livestock feed and pasture is consequently the single biggest driver of both deforestation and greenhouse gas emissions.
