Hello all, The University Center for Atmospheric Research COMET program has some very good online training modules on climate modeling. They can be very helpful in providing background information when we discuss climate change and climate change modeling. I recommend starting with "Introduction to Climate Models" and "Climate Change and Regional Impacts". https://www.meted.ucar.edu/training_detail.php?page=1&topic=2&language=1&orderBy=publishDateDesc Regards, Greg Greg Hanson [log in to unmask] Service Hydrologist 802.922.9139 NOAA/NWS Burlington VT http://www.weather.gov/burlington <http://www.facebook.com/US.NationalWeatherService.Burlington.gov>