The Gale Virtual Reference Library includes many sources relevant for this course, including many that are structured in terms of debates over controversial issues. For example:
Recycling Lauri S. Scherer, ed
Environmentalism. Lauri S. Scherer, ed
Garbage and recycling. Cynthia A Bily
Going Green Peggy Daniels Becker, ed.
Nuclear Power. Lauri S Scherer, ed.
Organic Food and Farming. Lauri S Scherer, ed.
Oil. Lauri S Scherer, ed.
Print or electronic reference sources can include encyclopedias, dictionaries, indexes and atlases. They can be an excellent source for locating specific information and facts, or summary essays on your topic.