The animals had been grouped by animal category: Milk, Bovine bovines not milk, Ovinos, Swines, Birds (hens, ducks and turkeys) and Other animals (Goat, Camels, Horses, and Muares). The regions of the globe had been divided in: North America, Eastern Europe, Europe Occidental person, Oceania, Latin America, Africa, Middle East,> Asia and Indian Subcontinent. The animal systems of creation had considered regimes: intensive, extensive cultivated pastures or native pastures. The manejos considered for the dejections had been: the grass, collected under liquid form or in folder. They are as many happened 0 variable of each system of creation that to use a mathematical model to look for to minimize the effect of the interferences of them in the calculated estimates ahead becomes an attitude at least ingenuous of the reality of the facts.
Exactly thus, the following gases: Co2, Nitrous Oxide, Methane, Hidrofluocarbonos, Perfluocarbonos, Hexafluoreto of sulphur, and Carbon Monoxide had had its calculated estimates of emission. As a whole, the story incriminates the animal creation as agent of degradation also of the land, of waters of the rivers, freticos sheets and biodiversity. To confection that document, the FAO enlisted some travellers of diverse rinces of the planet that had formed Initiative LEAD – Initiative for the Ambient Development and of the Creation Manual of Reference: General guides IPCC for the National Inventories of the Gases of Effect Greenhouse, Revised 1996 (4). In turn, the references that had contributed for the construction of the Manual related one had been originated by other researchers in some cantos of the planet in the period between 1965 and 1993. In Brazil, also based in the Manual of Reference IPCC, the Ministry of Science and Technology emitted in November of 2009 Brazilian Inventory of the Emissions and Removals Antrpicas de Gases de Efeito Greenhouse (5). Exactly with sublegenda general information and preliminary values variations of 25 for 22%, the sector of the Farming one and of 55 for 58% for the sector of Change of Use of the Land and Forests in the estimates for the emission of those gases in the years of 1990 and 2005, respectively.