With increasing concerns about possible changes to the climate system there is increased emphasis on running various climate change scenarios with new generation climate models. The DOE Parallel Climate Model (PCM) has been developed to make use of new components of the climate system and to run efficiently on massively parallel processor computers. The PCM has relatively high-resolution components compared to earlier generation climate models. The atmospheric component is the NCAR Community Climate Model (CCM3) at T42 horizontal resolution; the ocean component is the Los Alamos National Laboratory (LANL) Parallel Ocean Program (POP) at 2/3 degree resolution; and the 27-km sea ice component is the Yuxia Zhang model from the Naval Postgraduate School (NPS) with some modification by John Weatherly of the National Center for Atmospheric Research (NCAR). Several simulations with increased greenhouse gases and sulfate aerosols will be presented with this new generation climate model