The main goals of this activity are to 1) further develop a process-based model’s ability to simulate peatland carbon stocks and GHG (CO2, CH4, and N2O) exchanges with the atmosphere, 2) develop a process-based model of peatland fire and recovery to investigate the impacts of fire and fire management actions on site-level and regional peatland carbon budgets and GHG emissions, and 3) produce Canada-wide simulations of Canadian peatland C stocks and GHG fluxes under various climate and management scenarios.