Modelling land use related greenhouse gas sources and sinks and their mitigation potential

Todate, global economic and integrated assessmentmodelling of land has not been able to fully account for the opportunity costs of alternative land uses and landbased mitigation strategies, which are determined by heterogeneous and dynamic environmental and economic conditions of land and economy-wide feedbacks that reallocate inputs, international production and budgets (e.g. Rosegrant et al., 2001; Sohngen and Sedjo, 2006; Smith et al., 2007; Reilly et al., 2006; van Vuuren et al., 2006; Riahi et al., 2007).