In residential western industrialised world neighbourhoods there is a tendency toward a sterilisation of biodiversity and an erecting of fences made of wood. Simultaneously woodland is lost from both the creation of the monoculture lawns and the felling of trees to make planks and posts. A more sensible way that would bring greater benefit to communities would be to remove fences and make nature reserves that encourage biodiversity. Such areas would be greater play places and sites for environmental education than these "gardens." If you want your garden of Eden, this would be a reasonable, low resource input approach that communities could take on very rapidly. Added to this, folks would be less inclined to drive to natural places for enjoyment when their own neighbourhood becomes there own pocket of woodland.