(1 credit) Prerequisite: Senior standing in geology, earth science or chemistry/geology This course focuses on the development of thought concerning current global models and/or continuing controversies in geology. One credit will be earned per semester for a total of two credits to be awarded at the end of the second semester. Repeatable: may earn a maximum of two credits. Offered fall semester.(Formerly EASC 496)May be taken for graduate-level credit.