3 unit(s) This course develops energy and mass exchange processes in the near surface layer, the lower atmosphere and at the earth-atmosphere interface. Sensitivities of these processes to environmental change and feedback mechanisms are examined. Seminars and individual presentations are emphasized. One lecture (two hours), one lab (two hours); one term Prerequisite(s): One of EARTH SC 2C03, 2W03, ENVIR SC 2C03, 2W03 Cross-list(s):ENVIR SC 4C03