If you were writing about the relationship between human activity and the temperature of the earth, whose work would you choose to include in your paper? Look for clues that suggest their level of expertise and/or bias.
A. An atmospheric physicist at Winston University and founder of the Science and Environmental Policy Project, a think tank on climate and environmental issues.
B. A Washington Post staff writer who was written articles such as "Arctic Ice Shelf Crumbles Into Sea," "In Infrastructure Debate, Politics Is Key Player," and "President's Reform Efforts Get Results."
C. Current president of Greater Chipiwick Environmental Club, and publisher of a Web site that discusses the major causes of global warming in the last 100 years.