National Geographic’s Terry Garcia explanation of the “Greendex 2008” :
E&ETV -- Video Guide -- OnPoint: 05/12/2008
The survey was intended to provide a snapshot on consumer choices (house size, appliances, meat consumption, bottled water, usual transport means, etc.), as well as general attitudes towards environmental issues – not about the performance of the country as a whole. It’s about the people and the sustainability of their lifestyle / consumer behaviour, regardless of the individual government policies, etc. They intend to repeat these Greendex rankings each year to obtain trends.