Animal agriculture is the leading cause of species extinction, ocean dead zones, water pollution, and habitat destruction.
Livestock and their byproducts account for at least 32,000 million tons of carbon dioxide (CO2) per year, or 51% of all worldwide greenhouse gas emissions (Worldwatch Institute). Livestock production also covers 45% of the earth’s total land.
We grow enough edible grain to provide 50% more than is required for every person in the world, yet 27,000 children under the age of 5 die of poverty and starvation every day. Much of this edible grain is used to feed animals for meat, dairy and egg production.
If you factor in the amount of grain needed to produce meat, a single hectare of land can produce 29 times more food in the form of vegetables than in the form of chicken meat, 73 times more than pork and 78 times more than beef.