Karanja Joseph, Vanos Jennifer, Georgescu Matei, Frazier Amy E, Hondula David
School of Geographical Sciences and Urban Planning, Arizona State University, Tempe, Arizona, USA.
Urban Climate Research Center, Arizona State University, Tempe, Arizona, USA.
Environ Health Perspect. 2025 May;133(5):55003. doi: 10.1289/EHP14801. Epub 2025 May 27.
Representing vulnerability is crucial for informing targeted interventions, but existing vulnerability conceptualizations are too general for heat hazard-specific and place-specific relevance. Examining the key decision criteria centering around data choices, selection of input variables, methodological approaches, and theoretical conceptualizations are integral to progressing toward hazard-specific and place-specific vulnerability assessment. Moreover, decisions touching on Geographic Information Science (GIScience)-related issues (e.g., the implications of scale choices and accounting for contextual effects) impact how people who are at risk for adverse heat-health outcomes are represented. In turn, these representations influence how critical interventions are implemented. Given the prospects of increases in adverse heat-health outcomes associated with planetary and urban warming, it is crucial to examine how the representation of heat vulnerability can be enhanced for tailored interventions.
This commentary examines the assumptions underpinning the decision criteria for heat vulnerability analysis and identifies associated implications while recommending priority future research. Reorienting general hazard conceptualizations to reflect contextual, heat-specific nuances is crucial for attenuating heat-related health outcomes.
Heat vulnerability studies lack consistent decision criteria, which undermines progress toward hazard-specific and place-specific vulnerability relevance. Some of these limitations are attributable to the persistent application of general, all-hazards conceptualizations to hazard-specific studies. Moreover, inconsistent decision criteria undermine the replicability and validity of studies and propagate uncertainty while compromising progress toward standardized, consistent, scalable approaches and testing of existing assumptions that could strengthen heat vulnerability theory. Given GIScience technologies are central to representing spatial patterns of vulnerability, the epistemological foundation of vulnerability theory can be strengthened when GIScience concepts (e.g., the operational scale of social-environmental determinants of health and assumptions underpinning spatial relationships) are considered during vulnerability representation.
Examining decision criteria for heat vulnerability assessment is crucial to identifying optimal sets of heat-specific and place-specific risk indicators, thereby enhancing the representation of vulnerability. https://doi.org/10.1289/EHP14801.
描述脆弱性对于指导针对性干预措施至关重要，但现有的脆弱性概念过于宽泛，缺乏针对特定高温危害和特定地点的相关性。审视围绕数据选择、输入变量选择、方法学途径和理论概念化的关键决策标准，对于推进特定危害和特定地点的脆弱性评估至关重要。此外，涉及地理信息科学（GIScience）相关问题的决策（例如尺度选择的影响和对背景效应的考量）会影响对高温健康不良后果风险人群的描述方式。反过来，这些描述会影响关键干预措施的实施方式。鉴于与全球变暖和城市变暖相关的高温健康不良后果有增加的趋势，审视如何增强高温脆弱性的描述以进行针对性干预至关重要。
本评论审视了高温脆弱性分析决策标准背后的假设，识别了相关影响，并推荐了未来的优先研究方向。将一般危害概念重新定位以反映特定背景下、与高温相关的细微差别，对于减轻与高温相关的健康后果至关重要。
高温脆弱性研究缺乏一致的决策标准，这阻碍了在特定危害和特定地点的脆弱性相关性方面取得进展。其中一些局限性归因于将一般的全危害概念持续应用于特定危害研究。此外，不一致的决策标准破坏了研究的可重复性和有效性，传播了不确定性，同时阻碍了朝着标准化、一致、可扩展方法以及对可强化高温脆弱性理论的现有假设进行检验的方向取得进展。鉴于地理信息科学技术对于描述脆弱性的空间模式至关重要，在描述脆弱性时考虑地理信息科学概念（例如健康的社会环境决定因素的操作尺度以及空间关系背后的假设），可以加强脆弱性理论的认识论基础。
审视高温脆弱性评估的决策标准对于确定最佳的特定高温和特定地点风险指标集至关重要，从而增强对脆弱性的描述。https://doi.org/10.1289/EHP14801
