Urban Metabolism

From FIDICTerms
Jump to: navigation, search
Term Info
Urban Metabolism
Category Sustainable Development Terms
Last Edit By FIDIC
E-Mail suggestions [at] fidicterms.org
Last Edit Date 2018-07-02

Urban Metabolism means :

SDABC2015.png The ABC for Sustainable Cities - A glossary for policy makers. 1st edition (2015)

Urban Metabolism is a model that facilitates the description and analysis of the flows of materials and energy within cities. A city is a large group of living organisms. As such, it obeys physical and biological laws and the activities of a city – the ‘urban metabolism’ – generates two different types of environmental impact: the city takes resources from the environment (inputs) and produces different types of waste (outputs) which are variously assimilated by the environment. The inputs can cause depletion of resources and the outputs can generate toxicity and contribute to the depletion of resources (e.g. groundwater pollution). Outputs can also have direct impact on the health and well-being of people (e.g. local air and water pollution). Todays’ cities have large linear metabolisms characterised by high flows of energy and materials. The study of urban metabolism quantifies the inputs, outputs and storage of energy, water, nutrients, materials and wastes for an urban region.

United Nations Environment Programme, 2012; WORKING Paper: Framework elements for assessing urban environmental performance.