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一般来说，什么是矿业大国？发展中国家在重要原料生产中起什么作用？生产国对铜紧缺的威胁做出了怎样的反应？
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既然土壤侵蚀是一种自然过程，为什么它还受到关切？通常减少侵蚀的方法有哪些？在什么情况下、在哪些类型的地区会出现荒漠化和盐碱化？
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湿地有哪些类型？湿地为什么重要？为什么如此之多的湿地消失了？
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森林履行哪些至关重要的生态功能？热带雨林位处哪些地方？雨林的破坏引起哪些方面的关切？
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请讨论减少资源需求的三种途径。
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延伸阅读
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Brown, Lester R., et al. Vital Signs. New York: Norton. Annual.
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Cutter, Susan, and William H. Renwick. Exploitation, Conservation, Preservation: A Geographic Perspective on Natural Resource Use. 4th ed. New York: John Wiley & Sons, 2003.
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Diamond, Jared. Collapse: How Societies Choose to Fail or Succeed. New York, Viking, 2005.
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Dower, Roger, et al. A Sustainable Future for the United States. Washington, D.C.: World Resources Institute, 1996.
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1705414553
Enger, Eldon D., and Bradley Smith. Environmental Science: A Study of Interrelationships. 9th ed. Boston: McGraw-Hill, 2004.
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1705414555
Geller, Howard. Energy Revolution: Policies for a Sustainable Future. Covelo, Calif.: Island Press, 2003.
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1705414557
Hinrichs, Roger A., and Merlin H. Kleinbach. Energy: Its Use and the Environment. 3d ed. New York: Harcourt Brace Jovanovich, 2001.
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Josephson, Paul R. Industrialized Nature. Covelo, Calif.: Island Press, 2003.
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Kesler, Stephen E. Mineral Resources, Economics and the Environment. New York: acmillan, 1994.
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1705414563
Marsh, William M., and John M. Grossa, Jr. Environmental Geography: Science, Land Use, and Earth Systems. 3d ed. New York: John Wiley & Sons, 2004.
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Matthews, Emily, Richard Payne, Mark Rohweder, and Siobhan Murray. Pilot Analysis of Global Ecosystems: Forest Ecosystems. Washington, D.C.: World Resources Institute, 2000.
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Montgomery, Carla W. Environmental Geology. 6th ed. Boston: McGraw-Hill, 2003.
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Parfit, Michael. “Powering the Future.” National Geographic, August 2005, pp. 2-31.
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Ristinen, Robert A., and Jack Kraushaar. Energy and the Environment. New York: John Wiley & Sons, 1998.
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Spencer, Edgar W. Earth Science: Understanding Environmental Issues. Boston: McGraw-Hill, 2003.
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Tuxhill, John. Nature’s Cornucopia: Our Stake in Plant Diversity. Worldwatch Paper 148. Washington, D.C.: Worldwatch Institute, 1999.
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World Resources Institute and the International Institute for Environment and Development. World Resources. New York: Oxford University Press. Annual or biennial.
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World Watch, a bimonthly magazine published by the Worldwatch Institute, Washington, D.C.
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Worldwatch Institute. State of the World. New York: Norton. Annual.
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