Eating Meat = Poisoning the Earth

Industrial-scale agriculture now dominates the western livestock and poultry industries, and a single farm can now generate as much waste as a city. A cow excretes around 40kg of manure for every kilogram of edible beef it puts on and when you have many thousands crowded into a small area the effect can be dramatic. Their manure and urine is funnelled into massive waste lagoons sometimes holding as many as 40m gallons. These cesspools often break, leak or overflow, polluting underground water supplies and rivers with nitrogen, phosphorus and nitrates.

Tens of thousands of miles of rivers in the US, Europe and Asia are polluted each year. A single spill of millions of gallons of waste from a North Carolina pig factory lagoon in 1995 killed about 10 million fish and forced the closure of 364,000 acres of coastal wetlands to shellfishing.

The sheer quantity of animals now being raised for humans to eat now threatens the earth's biodiversity. More than one third of the world's 825 "ecoregions" identified by conservation group WWF are said to be threatened by livestock and giant US group Conservation International reckons that 23 out of 40-odd global "biodiversity hotspots" – the places considered most valuable for life – are now seriously affected by livestock production.