The Climate Change Adaptation Modeler includes an interface to the National Center for Atmospheric Research’s MAGICC and SCENGEN models for generating climate scenarios (based on CMIP3/AR4). In this illustration, the MAGICC suite of coupled gas-cycle, climate and ice-melt models was used to determine changes in greenhouse-gas concentrations and global-mean surface air temperature (the graph) using the A1B-AIM scenario. SCENGEN was then used to generate an ensemble forecast for January 2100 based on 20 atmosphere/ocean general circulation models.