The subject of climate change is increasingly important. The class will review the basic physics of climate change and the terminology. Students will also explore which emissions and activities are most deleterious and the tipping points associated with them. Other topics include planetary history of the atmosphere and the climate, and the causes of the ice ages. How did climate affect the spread of Homo Sapiens? What are the likely effects on agriculture and social migration? Students will also explore the effects in the US and elsewhere. Can geoengineering correct climate change?