Includes bibliographical references.

Should the precautionary principle become part of national and international law? -- Is sustainable development compatible with human welfare? -- Do ecosystem services have economic value? -- Should North America's landscape be restored to its prehuman state? -- Should the military be exempt from environmental regulations? -- Will restricting carbon emissions damage the economy? -- Is global warming a catastrophe that warrants immediate action? -- Should we drill for offshore oil? -- Is shale gas the solution to our energy woes? -- Is renewable energy really green? -- Are biofuels a reasonable substitute for fossil fuels? -- Is it time to revive nuclear power? -- Do we have a population problem? -- Does commercial fishing have a future? -- Can organic farming feed the world? -- Should society impose a moratorium on the use and release of "synthetic biology" organisms? -- Do environmental hormone mimics pose a potentially serious health threat? -- Should the superfund tax be reinstated? -- Should the United States reprocess spent nuclear fuel? -- Can "green" marketing claims be believed? -- Does designating "wild lands" harm rural economies?