The concentration of animals and the related concentration of nutrients are the core factors of water, soil and air pollution related to livestock production.
Spatial analyses based on nutrient balance calculations and Geographical Information Systems (GIS), allow to screen whole continents and predict areas where pollution of land and water is probable.
Specifically, the "hotspot maps" display areas location where livestock is likely to be the main contributor to nutrient overload on crop land. Livestock distribution maps are also useful to give a clear overview on the spatial trends of global livestock densities for the main species : cattle, small ruminants, pigs and poultry.
This information tool is intended for policy makers, planners, researchers and teachers, and is presented in Microsoft Powerpoint format for easy access and display. Meta data is also available.