Abstract
In this study, we developed an integrated model to provide a long-term perspective and a quantitative basis for analyzing the GHG emissions in agriculture for 23 world regions. The main objective is to quantify the relative importance of major emissions resources. In the result, world total meat production will increase by 1.9 times from 2000 to 2030 with population growth and a gradual shift from the main staples to meat products, particularly in the developing counties. The factor analysis showed GHG emissions increases mainly depending on growth of population, food production per capita and fertilizer consumption.