It’s been a busy spring for community climate modeling at NCAR. One major release pushes the veteran CCSM forward. Another release is on the way: the Community Earth System Model, which brings a new paradigm into the mix.

During the stormy summer of 2005, hurricanes Katrina and Rita raised concerns about the potential effects of global warming on tropical cyclones. At the same time, the Amazon rainforest was experiencing one of its most intense droughts of the last century.