The University of Victoria Earth System Climate Model (UVic ESCM) consists of a vertically integrated, energy/moisture balance, atmospheric model with dynamic feedbacks, coupled to the MOM2 ocean general circulation model and a dynamic/thermodynamic sea-ice model (Weaver et al. 2001). The horizontal resolution is 1.8x3.6 degrees and the ocean model has 19 vertical levels. The terrestrial carbon model is a modified version of the MOSES2 land surface model and the TRIFFID dynamic vegetation model (Meissner et al. 2003). Ocean carbon is simulated by means of an OCMIP-type inorganic carbon-cycle model and a marine ecosystem model solving prognostic equations for nutrients, phytoplankton, zooplankton and detritus (Schmittner et al. 2007). Sediment processes are represented using an oxic-only model of sediment respiration (Archer 1996). Isopycnal mixing and flux corrected transport were used in the ocean model with diapycnal diffusion specified as a horizontally constant profile. The sea-ice model is a simple, single layer, thermodynamic version, with elastic-viscous-plastic dynamics. References A.J. Weaver, et al., Atmos.-Ocean 39, 361 (2001). K.J. Meissner, et al., Clim. Dyn. 21,515 (2003). A. Schmittner, et al., Glob. Biogeochem. Cycl., 22, GB1013 (2008) D. Archer, Glob. Biogeochem. Cycl. 10, 511 (1996).