Olawade David B, McLaughlin Melissa, Adeniji Yinka Julianah, Egbon Gabriel Osasumwen, Rahimi Arghavan, Boussios Stergios
Department of Allied and Public Health, School of Health, Sport and Bioscience, University of East London, London E16 2RD, UK.
Department of Research and Innovation, Medway NHS Foundation Trust, Gillingham ME7 5NY, UK.
Int J Environ Res Public Health. 2025 Jun 6;22(6):909. doi: 10.3390/ijerph22060909.
Urban microclimates, which include phenomena such as urban heat islands (UHIs) as well as cooler environments created by shaded areas and green spaces, significantly affect social behavior and contribute to varying levels of social isolation in cities. UHIs, driven by heat-absorbing materials like concrete and asphalt, can increase urban temperatures by up to 12 °C, discouraging outdoor activities, especially among vulnerable populations like the elderly and those with chronic health conditions. In contrast, shaded areas and green spaces, where temperatures can be 2-5 °C cooler, encourage outdoor engagement and foster social interaction. This narrative review aims to synthesize current literature on the relationship between urban microclimates and social isolation, focusing on how UHIs and shaded areas influence social engagement. A comprehensive literature review was conducted, selecting sources based on their relevance to the effects of localized climate variations on social behavior, access to green spaces, and the impact of urban design interventions. A total of 142 articles were initially identified, with 103 included in the final review after applying inclusion/exclusion criteria. Key studies from diverse geographical and cultural contexts were analyzed to understand the interplay between environmental conditions and social cohesion. The review found that UHIs exacerbate social isolation by reducing outdoor activities, particularly for vulnerable groups such as the elderly and individuals with chronic health issues. In contrast, shaded areas and green spaces significantly mitigate isolation, with evidence showing that in specific study locations such as urban parks in Copenhagen and Melbourne, such areas increase outdoor social interactions by up to 25%, reduce stress, and enhance community cohesion. Urban planners and policymakers should prioritize integrating shaded areas and green spaces in city designs to mitigate the negative effects of UHIs. These interventions are critical for promoting social resilience, reducing isolation, and fostering connected, climate-adaptive communities. Future research should focus on longitudinal studies and the application of smart technologies such as IoT sensors and urban monitoring systems to track the social benefits of microclimate interventions.
城市微气候，包括城市热岛效应（UHI）以及由阴凉区域和绿地营造的较凉爽环境等现象，会显著影响社会行为，并导致城市中不同程度的社会隔离。由混凝土和沥青等吸热材料驱动的城市热岛效应，可使城市气温升高多达12摄氏度，抑制户外活动，尤其是在老年人和患有慢性健康问题等弱势群体中。相比之下，温度可低2至5摄氏度的阴凉区域和绿地，则鼓励户外参与并促进社交互动。本叙述性综述旨在综合当前关于城市微气候与社会隔离之间关系的文献，重点关注城市热岛效应和阴凉区域如何影响社会参与。我们进行了全面的文献综述，根据其与局部气候变化对社会行为的影响、绿地可达性以及城市设计干预措施的影响的相关性来选择文献来源。最初共识别出142篇文章，在应用纳入/排除标准后，最终综述纳入了103篇。对来自不同地理和文化背景的关键研究进行了分析，以了解环境条件与社会凝聚力之间的相互作用。综述发现，城市热岛效应通过减少户外活动，尤其是对老年人和患有慢性健康问题的个体等弱势群体，加剧了社会隔离。相比之下，阴凉区域和绿地显著减轻了隔离，有证据表明，在哥本哈根和墨尔本的城市公园等特定研究地点，这些区域可使户外社交互动增加多达25%，减轻压力，并增强社区凝聚力。城市规划者和政策制定者应优先在城市设计中纳入阴凉区域和绿地，以减轻城市热岛效应的负面影响。这些干预措施对于促进社会复原力、减少隔离以及培育有凝聚力、适应气候的社区至关重要。未来的研究应侧重于纵向研究以及物联网传感器和城市监测系统等智能技术的应用，以追踪微气候干预措施的社会效益。
