This presentation will explore the solutions that have been put forward by research teams at university and government agencies and by many private groups and individuals looking to reduce their own carbon footprints. Global and regional plans to reach net-zero carbon emissions by 2050 will be discussed.  Dr. Stefan Sommer is Director of Education at the Merriam Powell Center for Environmental Research at Northern Arizona University. His doctoral work is in ecological sustainability and he has studied effective communication across cultural boundaries in many contexts including PBS film production.