||Population growth and increasing meat demand, above all in Southern and South-East Asia, contribute to a surge in biomass demand for food and fodder. Moreover, ambitious programmes aim at a promotion of bio-energy production and use. At the same time, more than three quarters of the global land area are already used more or less intensively by humans: as settlement, industrial or traffic areas, cropland, forestry or as grazing lands for livestock. This project aims at a global analysis of the following questions: To what extent can the aims of improving humanity's food supply (qualitatively and quantitatively) and increasing bio-energy production be reconciled? What will be the impact of global climate change? What could be the contribution of changes in dietary patterns? What would be the impact of a promotion of organic agriculture?