The expansion of green areas in cities can potentially contribute to climate change mitigation and adaptation, heat and flood mitigation, erosion reduction and carbon capture.
Rising income and urbanization are changing diets and increasing the need for agricultural land.
Planet will need 180 bn tonnes of material a year by 2050 if trends continue.
While more and more resources are extracted, the economic growth from the use of these materials doesn’t increase at the same rate.
GHG emissions, energy and labour productivity grow much faster than material productivity.
Economic production happens in cities, with 80% of global GDP produced on just 2% of land surface.
Resource use is inequitable, with per capita use varying by a factor of 10 between nations.
Currently, re-manufacturing accounts for only 2 per cent of production in the United States, and 1.9 per cent in Europe.