510. Special Topics in the Environment (3).  A detailed examination of specific subjects in environmental issues, as chosen by the instructor.  Prerequisite(s):  Permission of the instructor. 
Note: May be repeated for additional credit.

520.  Senior Seminar in the Environment (3).  Student groups will explore diverse approaches to a selected environmental issue.  Prerequisite(s):  ENVS 101.  Notes:  Offered in spring.