Examine the environmental inequity impact of urban heat mitigation on redlining legacy: case study of Charlotte’s retrofitting, 2001–2020
Examine the environmental inequity impact of urban heat mitigation on redlining legacy: case study of Charlotte’s retrofitting, 2001–2020
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DOI：
10.3389/fenvs.2023.1218819
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发表时间：
2023-09
影响因子：
4.6
通讯作者：
Xijing Li;Xinlin Ma;Fangzheng Lyu;Yan Song
中科院分区：
文献类型：
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作者：
Xijing Li;Xinlin Ma;Fangzheng Lyu;Yan Song
由于全球变暖等外部因素和从快速城市化向可持续发展过渡的内部因素的双重挑战，气候适应政策受到了主要关注。然而，以往关于热量或气候缓解的研究往往侧重于外部因素，而忽略了贯穿城市发展和规划历史的内部因素。研究表明，城市热岛现象突出的城市中心，既受到强烈热暴露的外部因素的影响，又深受城市发展遗产内部因素的影响。越来越多的研究指出，城市发展的不公平遗产可能会影响城市的环境公平结果。基于此，我们认为城市减热研究应采用城市发展过程的视角。然后，我们利用热量缓解框架来检验在城市发展的较长时期内环境公平带来的切实成果。本研究以夏洛特市中心经历了多次红线政策和快速城市化的过程为重点，使用环境公平导向的城市热管理研究框架来检验一系列热缓解政策是否有效地减少了热暴露，以及它们是否真正造福了热弱势群体。基于20年来的多源热暴露和城市空间数据，本文提供了夏洛特市中心热暴露环境正在得到改善的证据。然而，尽管有这些改进，特别容易受到热暴露负面影响的热脆弱群体并没有体验到相应的好处。这篇文章的结论证实了基于自然的解决方案和社会生态系统方面的全球可持续研究的持续趋势，突出了环境公平评估的问题。
Climate adaptation policies have received attention in major due to the dual challenges of external factors like global warming, and internal factors related to the transition from rapid urbanization to sustainable development. However, previous research on heat or climate mitigation has often focused on external factors, neglecting the internal factors throughout the process of urban development and planning history. Research has revealed that city center where urban heat island phenomena is prominent, are subjected to external factors of intense heat exposure, as well as deeply influenced by the internal factors “urban development legacy.” An increasing body of research note that the inequitable legacy from urban development could impact environmental equity outcomes of cities. Based on this, we argue that urban heat mitigation research should adopt the perspective of the urban development process. We then utilize the Heat Mitigation Framework to examine the tangible outcomes of environmental equity over an extended period of urban development. This study focuses on the Charlotte city center that have undergone multiple processes of redlining policies and rapid urbanization, using a research framework for environmental equity-oriented urban heat management to examine whether a series of heat mitigation policies have effectively reduced heat exposure and whether they have truly benefited heat-vulnerable groups. Based on 20 years of multi-source heat exposure and urban spatial data, this paper provides evidence of ongoing enhancements to the heat exposure environment in the Charlotte city center. However, despite these improvements, heat vulnerable group that are particularly susceptible to the negative effects of heat exposure did not experience commensurate benefits. The conclusion of this article validates the ongoing trends of global sustainable studies in nature-based solutions and social-ecological systems, highlighting the issue of environmental equity evaluation.