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| Rethink resource flows into cities Opinion1 #147014 Everything being brought into the city from outside: food, water, products and energy need to be sourced sustainably. | |
+Citations (1) - CitationsAjouter une citationList by: CiterankMapLink[1] Cities Expand by Area Equal to France, Germany and Spain Combined in less than 20 years
En citant: Sybil Seitzinger - Executive Director of the International Geosphere-Biosphere Programme
Cité par: David Price 7:57 PM 1 April 2012 GMT
Citerank: (6) 146950UrbanizationUnless 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, 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, 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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