Totally insufficient. People need a green outlook out of their windows, surrounding greenery is linked to various kinds of psychological goodness. Having to co

Totally insufficient. People need a green outlook out of their windows, surrounding greenery is linked to various kinds of psychological goodness. Having to commute to an overcrowded, dirty, needle-ridden park or outskirt somewhere isn't an option. And for wildlife, continuous bands of greenery and routes of migration with only small interruptions (like street crossings) are necessary. Isolated islands are almost useless.