Brazil and India top the 'Greendex' commissioned by National Geographic

WASHINGTON - Brazilians and Indian consumers ranked the most environmentally friendly in a new study that put Americans in last place.

Indians and Brazilians each scored 60.0 points on the new "Greendex," announced Wednesday by the National Geographic Society.

Americans scored 44.9 points in the survey of 1,000 consumers in each of 14 countries.