Through investigation of a current issue of public consequence, students will develop the ability to move vertically through biological ideas from the intracellular to the organismal to the ecosystem level, thinking across scales and boundaries like expert biologists. The topic of societal interest chosen will vary and will be promulgated by the specific instructor. Where appropriate, students in the course will be encouraged to share their expertise regarding the course topic with the community. May be repeated for elective credit. Lecture: 3 hours. Prerequisites: BIOL 1A and 1B, CHEM 1B.