As a result of their annual survey, the National Geographic Society and an international polling firm GlobeScan gave India top rank in Greendex 2009 score. What is this score ?

The Greendex is a composite index designed to measure environmentally sustainable consumer behavior and consumption patterns across countries. National Geographic and GlobeScan explicitly state the index tracks consumer choices and material lifestyles (housing, transportation, food, goods) to monitor progress toward sustainable consumption rather than technology adoption, policy programs, or carbon-credit volumes [1]. The survey focuses on actual behaviors and household-level impacts, producing a score that reflects consumers’ environmental footprint in daily life. Therefore, among the options, the Greendex most accurately corresponds to a measure of environmentally sustainable consumer behaviour in different countries (Option 2).

Sources

1. [1] https://www.nationalgeographic.com/greendex/assets/GS_NGS_Full_Report_May09.pdf