The National Geographic Society and the international polling firm GlobeScan have unveiled "Greendex 2008: Consumer Choice and the Environment—A Worldwide Tracking Survey."

Consumers in Brazil and India tied as most "green," while those in the United States scored lowest, or most wasteful.
To create the survey, GlobeScan conducted Internet surveys of consumers in 14 countries, which together represent more than half of the world's population and use about 75 percent of its energy. Rather than measuring each nation's environmental impact, the Greendex compares the behaviors of individuals in four key areas: housing, transportation, food, and consumer goods.

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