Why Green roofs and Vertical Gardens for the Urban Environment?

A basic term in evolution is "niche". Plants and animals evolve to live in niche environments.

Humans can alter their environment to live pretty much any place. 90% of humans are deemed to live in cities in the near future. When we build cities we can tweak our designs to include useful habitat for other species and nature. 

An example of a tweak allows this beautiful pink Leptospermum squarrosum (Tea Tree) to flurish, it grows beside a concrete driveway, and needs the water collected in this area.

Images of what our kids can see in nature to help them imagine and create for our future. Also see the green roof I worked on in Bondi. Can we deny ourselves and our children nature in the urban environment? There are many tried and tested ways of greening our buildings.