The final screen in Lesson 9 Lesson Presentation introduces the notion of a systemic interconnection between greenhouse gasses, ozone depletion, and acid deposition. The lesson screen speaks of one common root source for each of these issues. That source, of course, is you (and me, and any of us who consume energy and materials goods).
Placing yourself in the center as the starting point, diagram the systemic interactions between these three issues. Be sure to include a view of your individual behaviors that influence these issues as well as some behaviors you might choose or actions you might take that would have a reducing impact.