"London, the city with the most parks in the world, has 27 square metres per person - 2.7 hectares per 1,000 people"
http://www.cbc.ca/news/background/parks/urban-parks.html
islamabad the capital of Pakistan is the most greenest and cleanest city of Asia
Bangalore
Bangalore
No city within the state of New York is the greenest
Dunedin,New Zealand Zurich Switzerland
It depends on what you mean by "Greenest" If you mean in energy consumption it's Paris, France. They use nuclear which is going to be the next resource of energy consumption.
Glasgow is known as the dear green place because of the number of parks.
the top ten greenest countries in the world are:finlandicelandnorwayswedenaustriaswitzerlandirelandaustraliaurguaydenmarkthere you go!
spinach
emerald
World's Greenest Homes - 2008 is rated/received certificates of: Australia:G
In 2008 Popular Science magazine names Elizabeth one of "America's 50 Greenest Cities". Elizabeth was the only New Jersey city selected.