1.let's begin by looking at measures the United States and other Western countries can take to produce more fuel-efficient and environmentally friendly fuel.

2.Given the current state of energy use, which continues to grow exponentially in such countries

3.as China and India, what measures can the United States and other Western countries take to produce more fuel-efficient and environmentally friendly fuels? What other sources of energy could be developed to solve the energy crisis? What can the individual do to alleviate this crisis? 

4.Before we decide what to do about the environment globally, let's see what we can do locally. What environmental problems are you aware of in the area where you live? What solutions, from among those proposed by the authors of the essays, do you think would be the most appropriate to solve these problems? Thinking locally: what environmental problems are you aware of in the area where you live?