As mentioned in Exercise 2, in Mapping It Out! in Chapter 7, concept maps can often take the place of more traditional note taking when reading magazine or newspaper articles. Here is another opportunity for you to practice the advantages of this technique. Using the Internet or the resources of your local or campus library, locate and read two articles on either global warming or the ozone-layer problem. After reading them, review both again and circle what you believe to be the key concepts introduced in each. Then, using only the concepts you circled, construct a concept map for each that represents the major points or positions discussed in the articles. After finishing the task, consider the difficulty of this exercise as you did in Chapter 7. Are some important concepts missing from the articles that you had to supply from your own background or knowledge in order to make sense of the articles? Evaluate how conceptually complete the articles were. Consider how your answer to the previous question might affect your judgment of the quality of the articles. Then use your concept maps to reconsider the degree to which you might be inclined to trust the accuracy or fairness of the articles. Comment on these issues as part of your report.