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The World in 2050: Four Forces Shaping Civilization's Northern FutureNational Intelligence Council, 2008), 99 pp. 90 БЂњThe People Crunch,БЂ«The Economist 390, no. 8614 (January 13, 2009). 91 Direct material imports of 3.2 metric tons of fossil fuel, between 8 and 9 tons of renewable raw materials including water, and between 11 and 15 tons of ores and minerals. These estimates were calculated at the country level, but Sweden is 85% urban. V. Palm, K. Jonsson, БЂњMaterials Flow Accounting in Sweden Material Use for National Consumption and for Export,БЂ«Journal of Industrial Ecology 7, no. 1, (2003): 81-92. 92 This materials accounting was monitored in 2004 for one full year. S. Niza, L. Rosado, БЂњMethodological Advances in Urban Material Flow Accounting: The Lisbon Case Study,БЂ«presented at ConAccount 2008, Urban Metabolism, Measuring the Ecological City, Prague, September 11-12, 2008. 93 For unknown reasons this link between urban growth and natural resource supply has been historically ignored in urbanization research. Of particular importance to ChinaБЂ™s cities are cement, steel, aluminum, and coal. L. Shen, S. Cheng, A. J. Gunson, H ...» |
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