Urban heat mitigation by green and blue infrastructure: Drivers, effectiveness, and future needs

The Innovation, Journal Year: 2024, Volume and Issue: 5(2), P. 100588 - 100588

Published: Feb. 7, 2024

The combination of urbanization and global warming leads to urban overheating compounds the frequency intensity extreme heat events due climate change. Yet, risk can be mitigated by green-blue-grey infrastructure (GBGI), such as parks, wetlands, engineered greening, which have potential effectively reduce summer air temperatures. Despite many reviews, evidence bases on quantified GBGI cooling benefits remains partial practical recommendations for implementation are unclear. This systematic literature review synthesizes base mitigation related co-benefits, identifies knowledge gaps, proposes their maximize benefits. After screening 27,486 papers, 202 were reviewed, based 51 types categorized under 10 main divisions. Certain (green walls, street trees) been well researched capabilities. However, several other received negligible (zoological garden, golf course, estuary) or minimal (private allotment) attention. most efficient was observed in botanical gardens (5.0 ± 3.5°C), wetlands (4.9 3.2°C), green walls (4.1 4.2°C), trees (3.8 3.1°C), vegetated balconies 2.7°C). Under changing conditions (2070-2100) with consideration RCP8.5, there is a shift subtypes, either within same zone (e.g., Dfa Dfb Cfb Cfa) across zones [continental warm-summer humid] BSk [dry, cold semi-arid] Cwa [temperate] Am [tropical]). These shifts may result lower efficiency current future. Given importance multiple services, it crucial balance functionality, performance, co-benefits when planning future GBGI. inventory assist policymakers planners prioritizing effective interventions overheating, filling research promoting community resilience.

Language: Английский

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Assessing urban population exposure risk to extreme heat: Patterns, trends, and implications for climate resilience in China (2000–2020)

Sustainable Cities and Society, Journal Year: 2024, Volume and Issue: 103, P. 105260 - 105260

Published: Feb. 7, 2024

Language: Английский

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Passive design strategies to improve student thermal comfort: A field study in semi-outdoor spaces of academic buildings in hot-humid areas

Urban Climate, Journal Year: 2024, Volume and Issue: 53, P. 101807 - 101807

Published: Jan. 1, 2024

Language: Английский

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Investigation of the outdoor workers’ thermal comfort and improving technology

Energy and Buildings, Journal Year: 2025, Volume and Issue: unknown, P. 115332 - 115332

Published: Jan. 1, 2025

Language: Английский

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The cooling intensity of green infrastructure in local climate zones: A comparative study in China's cold region

Urban Climate, Journal Year: 2023, Volume and Issue: 51, P. 101631 - 101631

Published: Aug. 2, 2023

Language: Английский

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Green strategies for improving urban microclimate and air quality: A case study of an Italian industrial district and facility

Building and Environment, Journal Year: 2023, Volume and Issue: 244, P. 110762 - 110762

Published: Aug. 22, 2023

Densely built areas are affected by higher air-pollutant concentrations, representing a significant risk to public health. At the same time, urban settlements have remarkable environmental impact: cities responsible for 70% of annual carbon emissions while buildings account 37% global energy and process emissions. Moreover, people living in frequently exposed extreme micro-climate conditions caused heat island effect, related increased external air temperature peculiarities environment. Given this framework considering Sustainable Development Goals, it is necessary point out some effective strategical mitigation measures ameliorate conditions, reduce pollutants concentration enhance building performance. This paper investigates potential advantages green roofs as retrofitting solutions tree planting on several parameters particulate matter concentration, an industrial district located Italy using ENVI-met software. The influence extensive roof performance further investigated at level recurring Design Builder models. Results showed that could up 1.5 °C, outer surface 15 °C wind speed 50% compared current state conditions. application let also achieve savings 15% both summer winter seasons. Focusing effect matter, intensive proved be more efficient capturing pollutants.

Language: Английский

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A review on the mechanisms behind thermal effect of building vertical greenery systems (VGS): methodology, performance and impact factors

Energy and Buildings, Journal Year: 2023, Volume and Issue: 303, P. 113785 - 113785

Published: Nov. 22, 2023

Language: Английский

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Building integrated vegetation effect on micro-climate conditions for urban heat island adaptation. Lesson learned from Turin and Rome case studies

Energy and Buildings, Journal Year: 2023, Volume and Issue: 295, P. 113233 - 113233

Published: June 13, 2023

The proposed study investigates the effect of urban heat island mitigation scenarios by applying extensive green roofs, façades, and living walls to two built areas within Turin Rome, Italy. Three a baseline one have been developed in ENVI-met software for each area run typical winter day, summer day with wave. simulation results show that building integrated vegetation technology-application on single has an irrelevant local temperatures; contrariwise, technology-wide application can effectively mitigate warming. Furthermore, roofs temperature is negligible winter, likely because limited plant activity reduced amount incoming solar radiation. Results also façades are more effective than mitigating pedestrian-level air when installed high-rise buildings, beneficial canyons parallel wind direction perpendicular ones. Depending scenario, average decreases temperatures up 1 °C be reached whole selected area, alleviating

Language: Английский

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Assessing urban heat island mitigation potential of realistic roof greening across local climate zones: A highly-resolved weather research and forecasting model study

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 944, P. 173728 - 173728

Published: June 12, 2024

Language: Английский

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Enhancing urban resilience in hot humid climates: A conceptual framework for exploring the environmental performance of vertical greening systems (VGS)

Frontiers of Architectural Research, Journal Year: 2023, Volume and Issue: 12(6), P. 1260 - 1284

Published: Nov. 1, 2023

Vertical greening systems (VGS) are promising green infrastructure (GI) techniques for addressing urban resilience issues, like mitigating high temperatures and air pollution. This research aims to develop a conceptual framework help designers better understand the VGS' effects on buildings areas, focusing thermal performance quality improvement in hot, humid climates. The consists of three steps: (1) Identifying climate problems that hinder built environment hot climates; (2) Selecting VGS as type GI can enhance resilience; (3) common key factors impact both while developing at building scales. results show be customized suit conditions. However, when applying with specified conditions, construction VGS, greenery coverage ratio, plant species, facade orientation, formation have most significant influences their environmental performance. Additionally, gap between has optimal paper concludes some recommendations future practice VGSs

Language: Английский

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