According to TheTravel.com, FH Gardens is the 6th most “green”; which they define as environmentally friendly. Some familiar neighborhoods are also in the Top 10, such as Riverdale at #5 and Kew Gardens at #1. Photo below show the amount of canopy in Forest Hills Gardens as compared to Forest Hills to the south and east.
See link to the article below.
https://www.thetravel.com/greenest-neighborhoods-in-new-york-city/