Aerial view of the building dubbed as the Hanging Gardens of Babylon VCG/VCG via Getty Images

越来越绿的城市

华盛顿—“绿色”城市应该是什么样子?应该像根本哈根那样,以自行车通勤和物品循环利用为特征?像巴西巴拉那州首付库里蒂巴那样,以以人为本的规划为特征?还是像埃塞俄比亚首都亚的斯亚贝巴那样,完全靠可再生能源发电?

如今,世界人口一半以上都生活在城市地区——这一比例还在迅速上升中——这个问题的答案将影响到我们共同的未来。但它也许比我们所意识到的更加直截了当:要让城市“更绿”——即污染更少、资源效率更高、环境恢复力更强——我们应该让它们真的变得更加绿色。

关于“绿化”城市的讨论通常能够认识到可持续基础设施和职能城市规划的重要性。它们所忽视的是大自然才是世界的原始基础设施,而基于自然的方案能够帮助城市解决一些它们所面临的最大的规划挑战,如空气和水污染、水稀缺和极端热浪,所有这些现在都因为气候变化而加剧。

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