The total area of productive land and water required to produce the resources a population consumes and absorb the waste produced.
Liveability
The characteristics of a city which improve the quality of life for the people living there.
Sustainable city
A city which provides employment, a high standard of living, a clean, healthy environment and fair governance for all its residents.
Sustainable development
Meeting the needs of the present without compromising the ability of future generations to meet their own needs.
Urban resilience
The capacity of individuals, communities, institutions, businesses and systems within a city to survive, adapt and grow, no matter what kinds of chronic stresses and acute shocks they experience.