1. Shawna Tracy and Roberta Stauffer believe that alternative fuels will replace gasoline over the long term, resulting in energy sustainability and slower global warming. Len Frank and Dan McCosh offer findings that they say show that reformulated gasoline is superior to alternative fuels. After reading both viewpoints, whose argument do you find more reliable? Why? Which of the viewpoints comes closer to what you believed before reading them?
2. Harold W. Bernard Jr. uses a future history scenario based on greenhouse effect research to forecast the impact of a major drought in “America’s Breadbasket” during the late 1990s. Robert C. Balling Jr., on the other hand, presents research to argue that there is little, if any, evidence that greenhouse warming is occurring. How could you go about further investigation to determine which viewpoint is more valid"