The main thing that makes it hard to have nature and green in cities isn’t density of buildings or density of people — it's density of cars. And the better you design your density of people and buildings, the fewer cars you need or want.
This is really important.
Indeed @morph
But why is this so?
Trees planted in compacted sharp sand and concrete, depleted of nutrition with their drip line completely sealed and damaged by parking cars can't be expected to do well.
My (architect) father got always frustrated by colleagues winning competitions with drawings of large trees - growing in 20cm topsoil on top of underground parking...
It takes competent planners and space to make trees work in cities. Space taken from cars.
Brent Toderian
morph
Arne