1.) Why do human beings play a unique role both in the 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 the long-term climatic cycles which include periodic ice ages as well?
4.) Why can't microbes that naturally clean up the environment continue to do so as in the past? How have human made their task harder? Easier?
5.) Why is energy from fusion reactors, unlike that from fission reactors, so 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 of 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?