漫不经心
发表于 2025-3-23 11:50:14
Supporting Sustainable Transportationand the loss of valuable land to streets, highways, and parking lots. Car- and truckcentered transportation systems run the risk of becoming like clogged arteries: they are bad not only for the vitality and attractiveness of cities, but also for urban residents’ health, local environmental quality, and the global climate.
冷淡一切
发表于 2025-3-23 17:36:38
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TOM
发表于 2025-3-23 20:36:56
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符合规定
发表于 2025-3-23 22:57:27
2945-5758 ight from on-the-ground professionals who understand the comIn the latest edition of .State of the World., the flagship publication of the Worldwatch Institute, experts from around the globe examine the core principles of sustainable urbanism and profile cities that are putting them into practice..T
小鹿
发表于 2025-3-24 04:22:27
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合唱队
发表于 2025-3-24 09:06:27
Cities in the Arc of Human History: A Materials Perspectivefirst time, a predominantly urban species. Our journey toward . over the past 12,000 years or so was driven by a series of social, environmental, and technological innovations that expanded the materials and energy available to humans to make city living possible and attractive.
PATRI
发表于 2025-3-24 13:49:31
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CIS
发表于 2025-3-24 18:44:28
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悬挂
发表于 2025-3-24 20:16:26
The Energy Wildcard: Possible Energy Constraints to Further Urbanizationnext several decades are correct. If current trends continue, all of these factors would increase significantly. However, an alternative scenario also is plausible—one in which the increased costs and reduced availability of energy, especially fossil fuels, sharply constrain further growth and dimin
围裙
发表于 2025-3-25 01:57:47
Cities and Greenhouse Gas Emissions: The Scope of the Challenge percent of global gross domestic product (GDP) and about 70 percent of global energy consumption and greenhouse gas emissions. If present trends continue, urban populations are expected to increase to 6 billion by 2045, at which point two-thirds of all people will live in urban environments. These