A new global survey reveals which country’s citizens have the most environmentally friendly lifestyles by examining the impact of individual consumer behavior.

The National Geographic Society and the international polling firm GlobeScan today unveiled “Greendex 2008: Consumer Choice and the Environment—A Worldwide Tracking Survey.” (The National Geographic Society owns National Geographic News.)

“The Greendex gives us an unprecedented, meaningful look at how consumers across the globe are behaving,” said Terry Garcia, National Geographic’s executive vice president of mission programs.

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.

Brazilians and Indians each scored 60 on the sustainable-consumption scale. Citizens of other nations scored as follows: China (56.1); Mexico (54.3); Hungary (53.2); Russia (52.4); Great Britain, Germany and Australia (each at 50.2); Spain (50); Japan (49.1); France (48.7); Canada (48.5); and the U.S. (44.9).

Face-to-face studies were conducted in Egypt and Nigeria, because limited Internet penetration there did not allow for a full representation of national demographics, according to the survey organizers. These countries were not scored because of the differing methodology.

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