1. Explain why do human beings play a unique role both in degradation and the preservation of the biosphere?
2. What is the importance of the "greenhouse effect?"
3. Could global warming be simply a part of long-term climatic cycles, which include periodic ice ages as well?
4. Why cant microbes that naturally clean up the environment continue to do so as in the past? How have humans made their task harder? Easier?
5. Why is energy from fusion reactor, unlike that from fission reactor, attractive from an environmental perspective?
6. Are all attempts to recreate an ecosystem doomed to failure?
7. How far should we go to protect and nurture endangered species?
8. Are the effects pollution reversible?
9. Do you think humans can change the behaviors leading to disruptions in the environment?
10. What is meant by the idea that all life on this planet is interdependent