Abstract
This problem-based case study explores the scientific issues surrounding the use of large scale iron fertilization as a means of decreasing atmospheric levels of carbon dioxide. A PowerPoint presentation introduces a New York Times article about a California businessman who chartered a fishing boat to dump 100 tons of iron dust into the Northern Pacific Ocean as a "state-of-the-art study." This was done without consulting scientific or political authorities. Students are then given two primary literature articles selected to help them understand the application of acid base chemistry and chemical equilibrium to an interesting issue connected to both the global economy and global climate change. This case study is designed for a second semester/second quarter general chemistry course, and is generally presented after the units on chemical equilibrium and acid/base chemistry have been covered. It could also be adapted for high school advance chemistry courses, non-majors introductory chemistry courses at the university level, and/or introductory courses in analytical or environmental chemistry.