1. Briefly explain the natural greenhouse effect and how human activities are modifying this phenomenon.
2. Why are clouds so important in the modeling of climatic change?
3. What is the most important greenhouse gas, and what four major greenhouse gases are being emitted to the atmosphere by human activities?
4. Briefly discuss how temperature and precipitation might change because of an enhanced greenhouseeffect brought about by emissions of greenhouse gasesto the atmosphere from human activities.
5. Besides temperature and precipitation changes, what are some other consequences of an enhanced greenhouse effect?
6. How is stratospheric ozone produced and destroyed?
7. Describe the process by which stratospheric ozone is destroyed by chlorofluorocarbons.
8. What are the two important functions of stratospheric ozone that aid in maintaining the environment of Earth as suitable for life?