Cengage Advantage Books: Sustaining the Earth 10th Edition by Tyler Miller,Scott Spoolman

تمرين 20

Describe air pollution laws in the United States. Summarize the story of lead pollution. Summarize the accomplishments of U.S. laws and discuss how we can improve them. List the advantages and disadvantages of using an emissions trading program. Summarize the major ways to reduce emissions from power plants and motor vehicles, and the ways to reduce indoor air pollution.