Offered spring. Prereq., GEO 101N/102N or GEO 103N/104N, GEO 211, M 122 or M 151. An introduction to the processes driving the Earth?s climate system using the laws and principles of physics and focused on energy and heat flow to/from and within the earth system. Individual components of the climate system and their couplings and feedbacks are first examined, followed by an integrated view of variability of earth?s energy balance over a range of time scales. The course will combine lectures with data analysis and modeling.