Let us develop our Gruen criteria here !
I think that among all the criteria listed in The Green Leaf Award, the Asian Green City Index and the European Green Capital Award , the following are the criteria which I appreciate the most :
1. Air quality
Air quality is an immediate indicator of how green is your city . Good air quality means the process of purification of air is faster , indicating that it is well endowed with greenery ~ green city .
2. Climate Change : Mitigation
Climate Change Mitigation refers to efforts to reduce or prevent emission of greenhouse gases. More the emission of greenhouses gases indicates lack of sustainable measures in that city and hence it hampers the process of creation of a green city .
What do you all think over these points ?