CM2Mc is a coarse-resolution (3-degree) version of the GFDL coupled model. It is similar to CM2.1 and ESM2M, with larger biases. It includes the BLING biogeochemical module (both the published version, v0, and a developmental version with more functionality). The basic model is described by Galbraith et al., 2011. The code used here has been updated from the original publication (to the GFDL Siena release) and there are some small modifications to the runtime parameters as described in Galbraith and de Lavergne, 2018. Simulation output is provided here, with no strings attached, in the hope that it might be useful for other investigators. Output can be used in publication, please just cite the description papers. If you have a burning question about anything, feel free to contact Eric. Otherwise, analyze away! The GFDL Earth system model CM2Mc was run to quasi-equilibrium under a broad range of external forcings, as described by Galbraith and deLavergne (2018). The purpose of these simulations was to map out the expectations of a modern climate model – of the sort used for conducting future climate change scenarios – under conditions that have occurred in the geologically-recent past. These simulations were described by Galbraith and de Lavergne (Climate Dynamics, 2018). Changes in ocean carbon storage among the simulations were also explored by Eggleston and Galbraith (Biogeosciences). However, these descriptions only scratch the surface – the output could be used to explore general mechanisms within the climate system, as well as their interactions with global biogeochemistry. The results could also be tested against new paleoclimate observations, to identify aspects of the simulations that are consistent, as well as to identify model biases and shortcomings when confronted with reality. For more please see: https://earthsystemdynamics.org/models/cm2mc-simulation-library/equilibrium-simulations/