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Sensitivity of mesoscale modeling to urban morphological feature inputs and implications for characterizing urban sustainability
IF 9.1 Q1 ENVIRONMENTAL STUDIES Pub Date : 2024-12-04 DOI: 10.1038/s42949-024-00185-6
Melissa R. Allen-Dumas, Levi T. Sweet-Breu, Christa M. Brelsford, Linying Wang, Joshua R. New, Brett C. Bass
We examine the differences in meteorological output from the Weather Research and Forecasting (WRF) model run at 270 m horizontal resolution using 10 m, 100 m and 1 km resolution 3D neighborhood morphological inputs and with no morphological inputs. We find that the spatial variability in temperature, humidity, and other meteorological variables across the city can vary with the resolution and the coverage of the 3D urban morphological input, and that larger differences occur between simulations run without 3D morphological input and those run with some type of 3D morphology. We also find that the inclusion of input-building-defined roughness length calculations would improve simulation results further. We show that these inputs produce different patterns of heat wave spatial heterogeneity across the city of Washington, DC. These findings suggest that understanding neighborhood level urban sustainability under extreme heat waves, especially for vulnerable neighborhoods, requires attention to the representation of surface terrain in numerical weather models.
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引用次数: 0
Promoting sustainable cities through creating social empathy between new urban populations and planners
IF 9.1 Q1 ENVIRONMENTAL STUDIES Pub Date : 2024-11-30 DOI: 10.1038/s42949-024-00189-2
Lucy Szaboova, W. Neil Adger, Ricardo Safra de Campos, Tasneem Siddiqui, Mohammad Rashed Alam Bhuiyan, Tamim Billah, Mahmudol Hasan Rocky
New migrant populations in rapidly growing cities globally are often socially and politically marginalized, limiting their potential to contribute to the positive transformation of urban futures. Such marginalisation can potentially be overcome through deliberate efforts to build empathy between groups. Here we apply insights on empathic action to planning processes with the aim of diversifying planning processes to provide plural perspectives on risk and sustainability and giving marginalised groups opportunities to shape key decisions. We report on action research to examine whether empathic connection between urban planners and new migrant populations leads to processes that enhance and integrate new voices and perspectives. The intervention involved photo-elicitation interviews, focus groups and perspective exchange workshops over eighteen months of intensive engagement in Chattogram, Bangladesh. The findings demonstrate that empathy for diverse social groups has practical implications for sustainability where individuals have agency and feel empowered to enhance each other’s wellbeing.
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引用次数: 0
Urban-rural digitalization evolves from divide to inclusion: empirical evidence from China 城乡数字化从鸿沟走向包容:来自中国的经验证据
IF 9.1 Q1 ENVIRONMENTAL STUDIES Pub Date : 2024-11-28 DOI: 10.1038/s42949-024-00187-4
Chuanglin Fang, Zehui Chen, Xia Liao, Biao Sun, Lingyu Meng
Global digitalization leads to a new digital inequality, jointly faced by urban and rural areas. Diagnosing these digital challenges and seeking common coping strategies are crucial in the digital era. Yet, the state of Urban-Rural Digitalization (URD) remains ambiguous, and effective solutions are still lacking. Here we propose an integrative approach and introduce a novel Development-Gap-Integration framework to assess URD. Utilizing authoritative data from official government sources and institutes, we conduct a comprehensive analysis of 30 provinces in China from 2000 to 2020. Our findings depict a transformative journey of URD, evolving from divide to inclusion. The increasing integration accompanies by advancing development and diminishing gaps. However, we identify three significant challenges: 1) high development coinciding with high gaps, 2) inadequate integration of digital applications, and 3) widening disparity between provinces. Thus, we suggest tailored policy recommendations focused on urban-rural integration, enhancing digital literacy, and promoting regional coordinated development.
全球数字化导致城市和农村地区共同面临新的数字不平等。诊断这些数字挑战并寻求共同的应对策略在数字时代至关重要。然而,城乡数字化(URD)的现状依然模糊不清,仍然缺乏有效的解决方案。在此,我们提出了一种综合方法,并引入了一个新颖的 "发展-差距-整合 "框架来评估 URD。利用来自政府官方来源和研究机构的权威数据,我们对中国 30 个省份从 2000 年到 2020 年的情况进行了全面分析。我们的研究结果描绘了城市发展的转型历程,即从分化到融合的演变过程。随着发展的推进和差距的缩小,融合度也在不断提高。然而,我们也发现了三个重大挑战:1)高发展与高差距并存;2)数字应用整合不足;3)省际差距不断扩大。因此,我们提出了以城乡一体化、提升数字素养、促进区域协调发展为重点的针对性政策建议。
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引用次数: 0
How will ai transform urban observing, sensing, imaging, and mapping? 人工智能将如何改变城市观测、传感、成像和制图?
IF 9.1 Q1 ENVIRONMENTAL STUDIES Pub Date : 2024-11-28 DOI: 10.1038/s42949-024-00188-3
Qihao Weng, Zhiwei Li, Yinxia Cao, Xiaoyan Lu, Paolo Gamba, Xiaoxiang Zhu, Yonghao Xu, Fan Zhang, Rongjun Qin, Micheal. Y. Yang, Peifeng Ma, Wei Huang, Tiangang Yin, Qiming Zheng, Yuhan Zhou, Greg Asner
Advances in artificial intelligence (AI) and Earth observation (EO) have transformed urban studies. This paper provides a commentary on how the AI-EO integration offers advancements in urban studies and applications. We conclude that AI will provide a deeper interpretation and autonomous identification of urban issues and the creation of customized urban designs. Open issues remain, especially in integrating diverse geospatial big data, data security, and developing a general analytical framework.
人工智能(AI)和地球观测(EO)的进步改变了城市研究。本文评述了人工智能与地球观测的结合如何推动城市研究和应用。我们的结论是,人工智能将对城市问题进行更深入的解读和自主识别,并创造出定制化的城市设计。但仍有一些问题有待解决,特别是在整合各种地理空间大数据、数据安全和开发通用分析框架方面。
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引用次数: 0
Post construction infrastructural adaptation of social practices in Dhaka’s under flyover spaces 达卡立交桥下空间的基础设施建设后社会实践调整
IF 9.1 Q1 ENVIRONMENTAL STUDIES Pub Date : 2024-11-11 DOI: 10.1038/s42949-024-00181-w
Srijon Barua, Hirohide Kobayashi
Transportation infrastructures often impose a rigid and controlled formation over the organic dynamism of urban areas. This blend of infrastructure and urban context redefines transportation systems beyond their purely functional roles, creating opportunities for new land uses, social interactions in the spaces beneath them. The management and adaptation of these urban void spaces under elevated infrastructure can become either assets or liabilities, particularly under the unique conditions prevalent in the Global South Megacities. Using participatory action research datasets and zoning models, this study explores the spatial relationships between physical infrastructure and its contextually accommodating opportunities. This article highlights how the squatter community under the Tejgaon-Nabisco Flyover in Dhaka, Bangladesh, autonomously organizes and utilizes these spaces, fostering adaptive place-making and developing local economic practices supported by the flyover’s structural elements.
交通基础设施通常会对城市地区的有机活力强加一种僵硬和受控的形式。这种基础设施与城市环境的融合重新定义了交通系统,使其超越了纯粹的功能性作用,为新的土地用途、其下空间的社会互动创造了机会。高架基础设施下的这些城市空隙空间的管理和适应既可以成为资产,也可以成为负债,尤其是在全球南部特大城市普遍存在的独特条件下。本研究利用参与式行动研究数据集和分区模型,探讨了有形基础设施与其环境适应机会之间的空间关系。本文重点介绍了孟加拉国达卡 Tejgaon-Nabisco 立交桥下的棚户区如何自主组织和利用这些空间,在立交桥结构元素的支持下,促进适应性场所营造并发展当地经济实践。
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引用次数: 0
More extremely hot days, more heat exposure and fewer cooling options for people of color in Connecticut, U.S. 美国康涅狄格州极热天气增多,高温暴露增加,有色人种的降温选择减少。
IF 9.1 Q1 ENVIRONMENTAL STUDIES Pub Date : 2024-11-03 DOI: 10.1038/s42949-024-00186-5
Shijuan Chen, Katie Lund, Colleen Murphy-Dunning, Karen C. Seto
It is well-documented that people of color in the U.S. are disproportionately exposed to extreme urban heat. However, most studies have focused on large cities for one point in time, and less is known about how heat exposure changes over time in smaller cities. Here, we present a study of the changing nature of urban heat exposure and cooling strategies for ten cities in Connecticut in the U.S. Our results show that people of color experience more heat exposure and fewer adaptation strategies. They experienced higher overall temperatures, more extremely hot days, and larger increases in heat exposure. Also, they have lower air conditioning ownership rates and lower tree cover. Taken together, the results indicate that people of color are not only exposed to higher temperatures but also disproportionately exposed to increasing temperatures over time. With lower heat adaptation capacity, people of color are more vulnerable to increasing urban heat.
美国有色人种过多地暴露在城市极端高温环境中,这是有据可查的。然而,大多数研究都集中在大城市的某个时间点上,对小城市的高温暴露如何随时间变化知之甚少。我们的研究结果表明,有色人种暴露在高温下的时间更长,采取的适应策略更少。他们经历了更高的总体气温、更多的酷热天以及更大幅度的高温暴露。此外,他们的空调拥有率较低,树木覆盖率也较低。综合来看,这些结果表明有色人种不仅暴露在较高的温度下,而且还不成比例地暴露在随着时间推移而不断升高的温度下。由于热适应能力较低,有色人种更容易受到城市高温的影响。
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引用次数: 0
Stakeholders’ perceptions of and willingness to pay for circular economy in the construction sector 利益相关者对建筑行业循环经济的看法和支付意愿
IF 9.1 Q1 ENVIRONMENTAL STUDIES Pub Date : 2024-10-24 DOI: 10.1038/s42949-024-00182-9
Juliana Berglund-Brown, Akrisht Pandey, Fabio Duarte, Raquel Ganitsky, Randy Kirchain, Siqi Zheng
Adopting Circular Economy practices in the construction industry can help reduce greenhouse gas emissions. However, many barriers exist to adoption, and current perceptions of and willingness to pay for circularity have yet to be quantified. This study seeks to understand the various perceptions of circularity in the construction industry, characterize uncertainties and risks, and identify economic incentives and opportunities that could accelerate circular adoption via an industry survey of three stakeholder groups. 58 stakeholders filled out part of the survey, and 42 stakeholders completed the majority of questions. Real estate developers are willing to pay an average premium of 10% for construction costs if there’s a minimum embodied carbon reduction of 53%. Design and construction professionals and material suppliers were also surveyed. Reasons for adopting circular practices were primarily driven by client, design team, and net zero goals. The results of this survey begin to characterize the economic landscape of what is needed for a circular transition in the built environment.
在建筑行业采用循环经济做法有助于减少温室气体排放。然而,在采用过程中存在许多障碍,目前对循环经济的认识和支付意愿也有待量化。本研究旨在通过对三个利益相关者群体进行行业调查,了解建筑行业对循环经济的各种看法,确定不确定因素和风险,并找出可加快采用循环经济的经济激励措施和机会。58 个利益相关者填写了部分调查问卷,42 个利益相关者填写了大部分问题。如果体现碳排放量至少减少 53%,房地产开发商愿意支付平均 10%的建筑成本溢价。设计和建筑专业人士以及材料供应商也接受了调查。客户、设计团队和净零目标是采用循环做法的主要原因。这项调查结果表明,在建筑环境中实现循环转型所需的经济条件已初见端倪。
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引用次数: 0
Accelerating circularity systemically: three directions for impactful research 系统地加速循环:有影响力研究的三个方向
IF 9.1 Q1 ENVIRONMENTAL STUDIES Pub Date : 2024-10-19 DOI: 10.1038/s42949-024-00183-8
Angela Greco, Brian van Laar, Hilde Remøy, Vincent Gruis
Over the past two decades, research promoting a sustainable built environment has pioneered new horizons to accelerate the transition to a circular economy. Yet, these efforts are suffering from a significant theory-practice divide. This article offers three interconnected research themes to bridge this gap: 1. Distinguishing circularity practices across spatial and time scales; 2. Redesigning the value of design and its process; and 3. Learning from sister transitions for acceleration.
在过去二十年里,促进可持续建筑环境的研究为加速向循环经济过渡开辟了新天地。然而,这些努力在理论与实践之间存在着巨大的鸿沟。本文提出了三个相互关联的研究主题,以弥合这一鸿沟:1.区分不同空间和时间尺度的循环性实践;2.重新设计设计的价值及其过程;3.从姊妹转型中学习以加速转型。从姊妹转型中学习加速。
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引用次数: 0
Cross-scale consumption-based simulation models can promote sustainable metropolitan food systems 基于消费的跨尺度模拟模型可促进可持续大都市食品系统的发展
IF 9.1 Q1 ENVIRONMENTAL STUDIES Pub Date : 2024-10-11 DOI: 10.1038/s42949-024-00184-7
Francesca Rubiconto, Sol Maria Halleck Vega, Eveline S. van Leeuwen
Due to the length and complexity of supply chains, changes in food consumption patterns in one metropolitan region can transform production patterns in other sectors and countries. Therefore, they cause complex synergies and trade-offs between environmental and socioeconomic goals at the local and global level. We argue that the dissemination of cross-scale consumption-based simulation models is crucial to investigate these complex multilevel effects and promote sustainable food systems.
由于供应链的长度和复杂性,一个大都市地区食品消费模式的变化会改变其他部门和国家的生产模式。因此,它们会在地方和全球层面造成环境和社会经济目标之间复杂的协同效应和权衡。我们认为,推广基于消费的跨尺度模拟模型对于研究这些复杂的多层次效应和促进可持续粮食系统至关重要。
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引用次数: 0
Multi-sectoral efforts are required for decarbonising the building sector: a case in Hong Kong 建筑行业去碳化需要多部门的努力:香港的一个案例
IF 9.1 Q1 ENVIRONMENTAL STUDIES Pub Date : 2024-10-10 DOI: 10.1038/s42949-024-00180-x
Yihan Wang, Wei Pan
Decarbonising the building sector involves collaborative efforts from multiple sectors. Previous studies only focused on carbon mitigation within individual measures, impeding the interconnections within various stages, contributing sectors, and measures. We propose an innovative “stage-sector-measure” framework for evaluating the carbon mitigation effects of the building sector and apply it to Hong Kong. Results show carbon emissions of Hong Kong’s building sector will decrease by 84.4% in 2050. Electricity is the most significant contributing sector, accounting for 71.8% of accumulative mitigation effects of Hong Kong’s building sector. Regarding measures, cleaner production of concrete and steel represents 62.9% of mitigation effects in material production stage, while alternative fuel mix and carbon capture and storage account for 42.2–87.7% of those in other stages. By clarifying the relationships among the stages, contributing sectors, and measures, we identify the mitigation mechanism of the building sector and reveal the significance of multi-sectoral efforts in its decarbonisation.
建筑行业的去碳化涉及多个部门的共同努力。以往的研究只关注个别措施的碳减排效果,而忽略了不同阶段、贡献部门和措施之间的相互联系。我们提出了一个创新的 "阶段-部门-措施 "框架来评估建筑行业的碳减排效果,并将其应用于香港。结果显示,到 2050 年,香港建筑行业的碳排放量将减少 84.4%。电力是贡献最大的行业,占香港建筑行业累积减排效果的 71.8%。在措施方面,混凝土和钢材的清洁生产占材料生产阶段减排效应的 62.9%,而替代燃料组合和碳捕集与封存占其他阶段减排效应的 42.2-87.7%。通过厘清各阶段、贡献部门和措施之间的关系,我们确定了建筑行业的减排机制,并揭示了多部门努力在其脱碳过程中的重要意义。
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引用次数: 0
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npj urban sustainability
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