This infographic shows the correlation between the Cost of Living Index and Quality of Living Index for selected global cities, as well as their score in the Eco-City Index. Some of the locations with the lowest cost of living and highest quality of living are Vancouver, Toronto, Stockholm, Lisbon and Frankfurt. Hong Kong has the highest cost of living but lower quality of living than many other locations. The general trend shows that the locations with higher cost of living and quality of living also rank higher for eco-friendliness.