Lecture, three hours; discussion, one hour. Propagation and budget of radiation in atmosphere and ocean; absorption and scattering of sunlight; emission and absorption of infrared radiation; radiative transfer equation; remote sensing; characteristics of particles in atmosphere and ocean; principles of particle and cloud drop formation; condensation and coagulation; impact of aerosol on climate; chemistry of atmosphere and ocean; ozone hole; principles of air and water pollution; impact of chemistry on health. S/U or letter grading.