Greendex Overall Scores (IMAGE) National Geographic Society Caption This is a comparison of overall Greendex scores for 17 countries in 2008 and 2009. Credit ©2009 National Geographic Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.