ABSTRACT
Like settlements, towns and industries, organic farms also produce polluted wastes and wastewaters. In some countries, about half of all serious water pollution incidents are due to manure runoff from farms. Poultry, cows, and pigs are the farm animals most responsible for the pollution. Livestock production occupies 70% of all land used for agriculture and 30% of the planet’s land surface. It is responsible for 18% of the world’s greenhouse gas emissions as measured in CO2 equivalents. It also generates 64% of the ammonia, which contributes to acid rain and acidication of ecosystems (FAO 2006; Action 2008; Watson 2008).
