Downscaling the planetary boundaries (Pbs) framework to city scale-level: De-risking MENA region's environment future
Downscaling the planetary boundaries (Pbs) framework to city scale-level: De-risking MENA region's environment future
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DOI：
10.1016/j.indic.2020.100023
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发表时间：
2020-02-01
影响因子：
4.3
通讯作者：
Baouni, Tahar
中科院分区：
文献类型：
--
作者：
Hachaichi, Mohamed;Baouni, Tahar
现代城市被认为是自公元前5400年苏美尔文明（Eridu）以来人类创造的最有害的人工制品。从那时起，城市在世界范围内继续扩散和扩张，伴随着智人革命，并成为许多环境破坏的起源。事实上，现代社会的行为和生活方式模式正在推动城市系统动力学变得更加复杂，更加依赖于全球经济市场。同样，重新设计现代城市和工业化社会以科普当代环境挑战对于维持地球的生命支持系统是不可避免的。我们的研究提供了不同的足迹（二氧化碳;收获的初级作物;原材料投入;氮;磷;农田牧场和淡水）的第一个一瞥估计在中东和北非地区的大城市分解成五个主要的消费类别使用扩展环境投入产出（EE-IO）分析，揭示了城市经济消费和相关的环境影响之间的关系。将地球界限指标缩小到城市一级，可用于加强现有城市可持续性议程的业务范围，或设计新的城市工具，以更好地将不断增长的经济纳入全球环境可持续性问题。据我们所知，这项研究是第一个将PBS框架缩小到城市规模的研究，并提供了对世界上一个科学探索不够的地区的第一个足迹。
Modern cities are considered as the most harmful artifacts created by mankind since 5400 BCE within the Sumerian civilization (Eridu). Since then, cities have continued to proliferate and expand across the world accompanying homo sapiens revolutions and becoming the origin of many environmental disruptions. Indeed, modern societies' behaviors and lifestyle patterns are pushing the urban system dynamics to be more complex and more dependent on the global economic market. Likewise, redesigning modern cities and industrialized societies to cope up with the contemporary environmental challenges is inevitable for maintaining Earth's life-support system. Our study provides the first glimpse estimations of different footprints (CO2; Harvested primary corps; Raw Material Inputs; Nitrogen; Phosphorus; Cropland pasture land and Freshwater) for big cities in the MENA region broken down into five major consumption categories using an Extended-Environmental Input-Output (EE-IO) analysis which shed light on the relation between urban economic consumption and associated environmental impacts. Down-scaling the planetary boundaries indicators (Pbs) to city scale level can be used to reinforce the operational scope of existing urban sustainability agendas or in designing new urban tools to better orchestrating growing economies into the global environment sustainability issues. To our knowledge, this study is the first on downscaling the Pbs framework to city scale level and providing first footprints insights on a part of the world that is not enough scientifically explored.