This simulation was performed with the first version of the coupled global model CGCMI with the standard concentration of CO2. Details of the model and an analysis of the simulation are given in Flato et al. (1998). Note: Due to data archival problems, data for April 2041 in the CONTROL run were lost. In order to provide continuous time series, this missing month was filled by linear interpolation between adjacent months. These data represent monthly averaged surface values of selected variables for the IPCC-Data Distribution Centre. (see also https://www.ipcc-data.org/ )