How to Spot Income Inequality From Space? Count the Trees

[hunter]

9. Iceland generates its electricity and heats it's homes and businesses with volcano power...

... so their per capita electric power use isn't so awful as any place that burns coal.

Are areas of great population density, like San Francisco or Manhattan, an exception or do their parks count?

San Francisco's Golden Gate Park and Manhattan's Central Park are gems, especially if you are living in a tiny apartment within easy walking distance or a short hop away by public transportation. These two cities are among the most expensive places to live in the world yet the average resident has abandoned the automobile culture. I don't think that's a coincidence.