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| Urbanization Composant1 #146950 Unless development patterns change, by 2030 humanity’s urban footprint will occupy an additional 1.5 million square kilometres - comparable to the combined territories of France, Germany and Spain—with the equivalent of a city of 1 million needed weekly across the next 38 years. | - UN estimates show human population growing from 7 billion today to 9 billion by 2050, translating into some 1 million more people expected on average each week for the next 38 years, with most of that increase anticipated in urban centres.
- Ongoing migration from rural to urban living could see world cities receive yet another 1 billion additional people.
- Total forecast urban population in 2050: 6.3 billion (up from 3.5 billion today).
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+Citations (2) - CitationsAjouter une citationList by: CiterankMapLink[1] Cities Expand by Area Equal to France, Germany a n d Spa i n Combined in less than 20 years
En citant: Michail Fragkias - Arizona State University
Cité par: David Price 6:25 PM 1 April 2012 GMT
Citerank: (6) 146988Better city planning and reformsReforms in existing cities and better planning of new ones offer disproportionately large environmental benefits compared with other options.959C6EF, 146990Cities responsible for 70% of CO2 emissionsOver 70% of CO2 emissions today relate to city needs. In billions of metric tonnes, urban-area CO2 emissions were estimated at about 15 in 1990 and 25 in 2010, with forecasts of growth to 36.5 by 2030, assuming business as usual.1198CE71, 147000Time of day-adjusted toll systemsTime of day-adjusted toll systems to reduce traffic congestion109FDEF6, 147006Innovation in planningMove beyond traditional approaches to planning and be responsive to informal urban growth, to the value of ecosystem services, and to the need of multidimensional perspectives (social, economic, cultural, environmental, political, biophysical).959C6EF, 147014Rethink resource flows into citiesEverything being brought into the city from outside: food, water, products and energy need to be sourced sustainably.959C6EF, 154483UrbanizationUnless development patterns change, by 2030 humanity’s urban footprint will occupy an additional 1.5 million square kilometres - comparable to the combined territories of France, Germany and Spain—with the equivalent of a city of 1 million needed weekly across the next 38 years.109FDEF6
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