BOULDER, Colo., Aug. 19 (UPI) -- Climate scientists say new computer simulation software released by U.S. researchers will be a primary tool as they prepare to study climate change models. The Community Earth System Model from the National Center for Atmospheric Research in Boulder, Colo., will be one of the primary climate models used for the next assessment by the Intergovernmental Panel on Climate Change, a National Science Foundation release said Wednesday. The CESM is the latest in a series of global models developed during the past 30 years, jointly supported by the U.S. Department of Energy and the National...