Pub Date : 2025-12-20DOI: 10.1016/j.gloenvcha.2025.103103
Yaning Qiao , Yaru Guo , Sebastian Rowan , Ricardo Medina , Xavier Espinet , Jonathan Cullen , Fanran Meng , Zhi Cao
Mozambique, often impacted by severe flooding, faces challenges with its bridge networks, particularly due to climate change. Existing methods for evaluating flood-induced bridge asset failure loss lack a comprehensive national level risk assessment that includes a full spectrum of flood events and bridge-specific details. We introduce a new framework that quantifies flood-induced bridge failure loss nationally, incorporating climate change using an equivalent flood return period approach. This framework provides a continuous risk analysis, addressing the shortcomings of discrete flood return periods. Our analysis of 1,210 bridges in Mozambique indicates an annual expected values of bridge asset failure losses equivalent to 0.6 % of its 2021 Gross Domestic Product (GDP), or 83 million dollars. Under a high emission scenario, this loss could increase to 162 million dollars by 2050. The findings highlight the vulnerability of Mozambique’s bridges to floods with return periods of 500 to 1000 years, suggesting the need for revisions of bridge design codes. The framework’s utility extends beyond Mozambique; Other Global South countries can apply it to assess their bridge asset failure risks and strategically enhance bridge resilience. This method improves infrastructure management by identifying high-risk areas and justifying resource allocation for adaptation, enabling proactive responses to flood-induced challenges and enhancing climate resilience.
{"title":"Doubling of flood-induced bridge asset failure loss in Mozambique under 2050 climate","authors":"Yaning Qiao , Yaru Guo , Sebastian Rowan , Ricardo Medina , Xavier Espinet , Jonathan Cullen , Fanran Meng , Zhi Cao","doi":"10.1016/j.gloenvcha.2025.103103","DOIUrl":"10.1016/j.gloenvcha.2025.103103","url":null,"abstract":"<div><div>Mozambique, often impacted by severe flooding, faces challenges with its bridge networks, particularly due to climate change. Existing methods for evaluating flood-induced bridge asset failure loss lack a comprehensive national level risk assessment that includes a full spectrum of flood events and bridge-specific details. We introduce a new framework that quantifies flood-induced bridge failure loss nationally, incorporating climate change using an equivalent flood return period approach. This framework provides a continuous risk analysis, addressing the shortcomings of discrete flood return periods. Our analysis of 1,210 bridges in Mozambique indicates an annual expected values of bridge asset failure losses equivalent to 0.6 % of its 2021 Gross Domestic Product (GDP), or 83 million dollars. Under a high emission scenario, this loss could increase to 162 million dollars by 2050. The findings highlight the vulnerability of Mozambique’s bridges to floods with return periods of 500 to 1000 years, suggesting the need for revisions of bridge design codes. The framework’s utility extends beyond Mozambique; Other Global South countries can apply it to assess their bridge asset failure risks and strategically enhance bridge resilience. This method improves infrastructure management by identifying high-risk areas and justifying resource allocation for adaptation, enabling proactive responses to flood-induced challenges and enhancing climate resilience.</div></div>","PeriodicalId":328,"journal":{"name":"Global Environmental Change","volume":"96 ","pages":"Article 103103"},"PeriodicalIF":9.1,"publicationDate":"2025-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145796216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-19DOI: 10.1016/j.gloenvcha.2025.103096
Sarah MacInnes , Matthew J. Hornsey , Christian Bretter , Samuel Pearson , Kelly S. Fielding , David Bersoff
Trust in climate communicators is a critical determinant of whether the public accepts and acts upon climate change information. Yet most research to date has focused on who is trusted, with less attention to why certain messengers are deemed trustworthy. Using survey data from 6479 participants across 13 countries, this study examines (1) which sources of climate information are trusted, (2) what features make a communicator trustworthy, and (3) how these judgments differ between climate change believers and skeptics. Scientists were the most trusted sources among climate believers, but overall, the most trusted sources are informal and identity-based: “friends and family” and “people like me.” Across the sample, trust was predicted not only by demographic variables but also by specific communicator features: most notably clarity, shared values, sincerity, and being respectful of opposing views. Believers and skeptics prioritized different features, underscoring that trust is not a universal response but shaped by ideological identity. These findings reveal the layered and audience-contingent nature of trust in climate communication. By identifying the features that drive trust across different audiences, this study offers practical guidance for communicators interested in tailoring messages and messengers to more effectively engage the public on climate action.
{"title":"Who do we trust on climate change, and why?","authors":"Sarah MacInnes , Matthew J. Hornsey , Christian Bretter , Samuel Pearson , Kelly S. Fielding , David Bersoff","doi":"10.1016/j.gloenvcha.2025.103096","DOIUrl":"10.1016/j.gloenvcha.2025.103096","url":null,"abstract":"<div><div>Trust in climate communicators is a critical determinant of whether the public accepts and acts upon climate change information. Yet most research to date has focused on who is trusted, with less attention to why certain messengers are deemed trustworthy. Using survey data from 6479 participants across 13 countries, this study examines (1) which sources of climate information are trusted, (2) what features make a communicator trustworthy, and (3) how these judgments differ between climate change believers and skeptics. Scientists were the most trusted sources among climate believers, but overall, the most trusted sources are informal and identity-based: “friends and family” and “people like me.” Across the sample, trust was predicted not only by demographic variables but also by specific communicator features: most notably clarity, shared values, sincerity, and being respectful of opposing views. Believers and skeptics prioritized different features, underscoring that trust is not a universal response but shaped by ideological identity. These findings reveal the layered and audience-contingent nature of trust in climate communication. By identifying the features that drive trust across different audiences, this study offers practical guidance for communicators interested in tailoring messages and messengers to more effectively engage the public on climate action.</div></div>","PeriodicalId":328,"journal":{"name":"Global Environmental Change","volume":"96 ","pages":"Article 103096"},"PeriodicalIF":9.1,"publicationDate":"2025-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145785164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-19DOI: 10.1016/j.gloenvcha.2025.103104
Donald O. Akanga , Nathan J. Moore , Kyla M. Dahlin , Dan Wanyama
Increasing pressure on natural resources in the last decades has led to a growing need for balance between preserving ecosystems and meeting human needs. However, sustainability is frustratingly difficult to measure due to its spatially specific nature and data deficiencies. Water, energy, and food (WEF) are critical sectors required to sustain human livelihoods. Yet, these sectors are highly susceptible to pressures associated with climate change and other anthropogenic pressures which in turn threaten socio-ecological sustainability. Vulnerable populations in developing countries are disproportionately affected by these pressures. For example, changes in precipitation (water) influence agricultural yields (food), which in turn increase human influence on the environment in terms of energy consumption (more use of charcoal and wood). Using a WEF nexus framework, we assess the socio-ecological sustainability of the Greater Mau Forest Complex, an important yet fragile ecosystem in southwest Kenya, from 1990 to 2021. By integrating remote sensing, field interviews, and historical crop yield data, we address challenges of data scarcity in assessing socio-ecological systems. Our analysis reveals shifting landscape composition and corresponding climate trends over the past three decades, alongside their parallels with socio-ecological balance and community vulnerability to climate change. We find compounding effects of prolonged dry conditions, erratic onset of growing seasons, declining crop productivity, and intensifying dependence on bioenergy – factors that interact to destabilize the WEF nexus. Our findings underscore the urgency of nexus-based interventions to enhance resilience in ecologically sensitive regions.
{"title":"Advancing sustainability in data-sparse landscapes using a water-energy-food nexus approach","authors":"Donald O. Akanga , Nathan J. Moore , Kyla M. Dahlin , Dan Wanyama","doi":"10.1016/j.gloenvcha.2025.103104","DOIUrl":"10.1016/j.gloenvcha.2025.103104","url":null,"abstract":"<div><div>Increasing pressure on natural resources in the last decades has led to a growing need for balance between preserving ecosystems and meeting human needs. However, sustainability is frustratingly difficult to measure due to its spatially specific nature and data deficiencies. Water, energy, and food (WEF) are critical sectors required to sustain human livelihoods. Yet, these sectors are highly susceptible to pressures associated with climate change and other anthropogenic pressures which in turn threaten socio-ecological sustainability. Vulnerable populations in developing countries are disproportionately affected by these pressures. For example, changes in precipitation (water) influence agricultural yields (food), which in turn increase human influence on the environment in terms of energy consumption (more use of charcoal and wood). Using a WEF nexus framework, we assess the socio-ecological sustainability of the Greater Mau Forest Complex, an important yet fragile ecosystem in southwest Kenya, from 1990 to 2021. By integrating remote sensing, field interviews, and historical crop yield data, we address challenges of data scarcity in assessing socio-ecological systems. Our analysis reveals shifting landscape composition and corresponding climate trends over the past three decades, alongside their parallels with socio-ecological balance and community vulnerability to climate change. We find compounding effects of prolonged dry conditions, erratic onset of growing seasons, declining crop productivity, and intensifying dependence on bioenergy – factors that interact to destabilize the WEF nexus. Our findings underscore the urgency of nexus-based interventions to enhance resilience in ecologically sensitive regions.</div></div>","PeriodicalId":328,"journal":{"name":"Global Environmental Change","volume":"96 ","pages":"Article 103104"},"PeriodicalIF":9.1,"publicationDate":"2025-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145785163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-11DOI: 10.1016/j.gloenvcha.2025.103089
Ashwin Ravikumar , Sara Zhu
This paper offers the first empirical assessment of the relationship between deforestation and spending on social services centered in the Peruvian Amazon. We use a spatially explicit regression model to analyze the relationship between social spending and deforestation at the district level across the Peruvian Amazon. We find that districts with higher levels of spending on health care, education, and sanitation exhibit less deforestation on average, implying that unconditional funding for social services can serve as the basis for sound ecological policy. We then use further ethnographic, interview, and focus group data from the Amazonian districts of Echarate, Puerto Bermúdez, and Callería to shed light on how funding social services work to reduce deforestation. While Echarate and Puerto Bermúdez are similar in terms of ecology and population density, Echarate has a much higher budget due to natural gas levies. Respondents in Echarate indicated that a more robust social service net made deforestation and cash crop expansion less attractive. By contrast, in Puerto Bermúdez, many people aspired to an agrarian capitalist future with expanded cash crop plantations and hired labor as a means to build a better future for their families. Meanwhile, the case of Callería shows how conventional approaches to conservation have been fundamentally orthogonal to people’s basic needs. We conclude by encouraging political ecologists and scholars of convivial conservation approaches like Conservation Basic Income to critically support unconditional funding for basic services as part of a global just transition, aligned with the climate debt framework.
{"title":"Public spending on health care, education, and sanitation is linked to lower deforestation in the Peruvian Amazon: new empirical support for the climate debt framework","authors":"Ashwin Ravikumar , Sara Zhu","doi":"10.1016/j.gloenvcha.2025.103089","DOIUrl":"10.1016/j.gloenvcha.2025.103089","url":null,"abstract":"<div><div>This paper offers the first empirical assessment of the relationship between deforestation and spending on social services centered in the Peruvian Amazon. We use a spatially explicit regression model to analyze the relationship between social spending and deforestation at the district level across the Peruvian Amazon. We find that districts with higher levels of spending on health care, education, and sanitation exhibit less deforestation on average, implying that unconditional funding for social services can serve as the basis for sound ecological policy. We then use further ethnographic, interview, and focus group data from the Amazonian districts of Echarate, Puerto Bermúdez, and Callería to shed light on how funding social services work to reduce deforestation. While Echarate and Puerto Bermúdez are similar in terms of ecology and population density, Echarate has a much higher budget due to natural gas levies. Respondents in Echarate indicated that a more robust social service net made deforestation and cash crop expansion less attractive. By contrast, in Puerto Bermúdez, many people aspired to an agrarian capitalist future with expanded cash crop plantations and hired labor as a means to build a better future for their families. Meanwhile, the case of Callería shows how conventional approaches to conservation have been fundamentally orthogonal to people’s basic needs. We conclude by encouraging political ecologists and scholars of convivial conservation approaches like Conservation Basic Income to critically support unconditional funding for basic services as part of a global just transition, aligned with the climate debt framework.</div></div>","PeriodicalId":328,"journal":{"name":"Global Environmental Change","volume":"96 ","pages":"Article 103089"},"PeriodicalIF":9.1,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145735495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-08DOI: 10.1016/j.gloenvcha.2025.103088
Jing Wang , Bao-Zhong Wang , Fei Mo , Yinglong Chen , Mohammad Ashraf , Yang Wang , Jian-Ming Li , Hai-Xia Duan , Yajie Song , Levis Kavagi , Hong-Yan Tao , You-Cai Xiong
It is crucial to enhance climate resilience of global dryland maize to cope with future 50-year warming scenarios (2030–2079), including SSP2-4.5 (medium emission) and SSP5-8.5 (high emission). We first calibrated and validated the AquaCrop model using observational data of field production with plastic film mulching (water-saving) and without mulching (CK) across 2019 and 2020. Subsequently, we used the validated AquaCrop model to simulate and predict maize biomass and seed yield based on different sowing dates and mulching patterns, employing historical climate data (1995–2019) and projected data under future climate scenarios. The results indicated that, relative to historical period, biomass and seed yields would decline by 5.9 % and 16.5 % under CK, but increase by 22.2 % and 21.0 % under plastic film mulching over the next 50 years under global warming, respectively. The stability and sustainability index of biomass yield would decline in CK, yet significantly increase under mulching. Seed yield would decline from SSP2-4.5 to SSP5-8.5, while biomass yield would elevate significantly. Relative to historical period, under plastic film mulching, optimal planting date window (OPDW) for seed production would be averagely extended by 2.8 days under SSP2-4.5 and SSP5-8.5 scenarios, which is significantly shorter than the averagely extended OPDW for biomass production under future climate scenarios (7.6 days). Mulching strategy enables crops to better adapt to severe fluctuations of precipitation, temperature, and solar radiation than CK. Therefore, biomass-led, rather than seed-led, mulching production strategy promises future climate resilience and sustainability of global dryland maize, particularly under high emission scenario.
{"title":"Enhancing climate resilience of global dryland maize to cope with future 50-year climate warming","authors":"Jing Wang , Bao-Zhong Wang , Fei Mo , Yinglong Chen , Mohammad Ashraf , Yang Wang , Jian-Ming Li , Hai-Xia Duan , Yajie Song , Levis Kavagi , Hong-Yan Tao , You-Cai Xiong","doi":"10.1016/j.gloenvcha.2025.103088","DOIUrl":"10.1016/j.gloenvcha.2025.103088","url":null,"abstract":"<div><div>It is crucial to enhance climate resilience of global dryland maize to cope with future 50-year warming scenarios (2030–2079), including SSP2-4.5 (medium emission) and SSP5-8.5 (high emission). We first calibrated and validated the AquaCrop model using observational data of field production with plastic film mulching (water-saving) and without mulching (CK) across 2019 and 2020. Subsequently, we used the validated AquaCrop model to simulate and predict maize biomass and seed yield based on different sowing dates and mulching patterns, employing historical climate data (1995–2019) and projected data under future climate scenarios. The results indicated that, relative to historical period, biomass and seed yields would decline by 5.9 % and 16.5 % under CK, but increase by 22.2 % and 21.0 % under plastic film mulching over the next 50 years under global warming, respectively. The stability and sustainability index of biomass yield would decline in CK, yet significantly increase under mulching. Seed yield would decline from SSP2-4.5 to SSP5-8.5, while biomass yield would elevate significantly. Relative to historical period, under plastic film mulching, optimal planting date window (OPDW) for seed production would be averagely extended by 2.8 days under SSP2-4.5 and SSP5-8.5 scenarios, which is significantly shorter than the averagely extended OPDW for biomass production under future climate scenarios (7.6 days). Mulching strategy enables crops to better adapt to severe fluctuations of precipitation, temperature, and solar radiation than CK. Therefore, biomass-led, rather than seed-led, mulching production strategy promises future climate resilience and sustainability of global dryland maize, particularly under high emission scenario.</div></div>","PeriodicalId":328,"journal":{"name":"Global Environmental Change","volume":"96 ","pages":"Article 103088"},"PeriodicalIF":9.1,"publicationDate":"2025-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145697411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-01DOI: 10.1016/j.gloenvcha.2025.103087
Abdulrasheed Isah , Florian Egli , Anna Stünzi , Tobias Schmidt
Nationally Determined Contributions (NDCs) are central to the Paris Agreement, serving as both pledges of climate ambition and platforms for articulating climate finance needs. However, how developing countries quantify these needs and the influencing factors remain poorly understood. Using an inductive research design based on expert interviews, we identify domestic and international factors influencing how countries estimate finance needs in their NDCs. Political institutions and the strategic perceptions of policymakers regarding NDCs – either as negotiation tools or investment plans – influence the specificity of climate finance needs estimates. Limited technical capacity and stakeholder engagement are important constraints in several countries. Meanwhile, international factors such as negotiating groups and consultants contribute to more detailed costing of climate finance when enabled by supportive policy environments. We propose a typology describing the spectrum of NDC archetypes, reflecting the interaction between domestic and international factors, as well as bottom-up and top-down estimation approaches. Our findings underscore that climate finance quantification is both technical and political, with implications for transparency and resource mobilization potential of future NDCs. Policymakers should remove barriers to obtaining granular sectoral and climate data, demonstrate political commitment, and strengthen collaborations with subnational levels. Capacity-building initiatives should strengthen the institutional and stakeholder foundations of detailed NDCs. Climate finance consultants should prioritize knowledge transfer and sustained collaboration with domestic institutions.
{"title":"How do developing countries estimate their climate finance needs under the Paris Agreement?","authors":"Abdulrasheed Isah , Florian Egli , Anna Stünzi , Tobias Schmidt","doi":"10.1016/j.gloenvcha.2025.103087","DOIUrl":"10.1016/j.gloenvcha.2025.103087","url":null,"abstract":"<div><div>Nationally Determined Contributions (NDCs) are central to the Paris Agreement, serving as both pledges of climate ambition and platforms for articulating climate finance needs. However, how developing countries quantify these needs and the influencing factors remain poorly understood. Using an inductive research design based on expert interviews, we identify domestic and international factors influencing how countries estimate finance needs in their NDCs. Political institutions and the strategic perceptions of policymakers regarding NDCs – either as negotiation tools or investment plans – influence the specificity of climate finance needs estimates. Limited technical capacity and stakeholder engagement are important constraints in several countries. Meanwhile, international factors such as negotiating groups and consultants contribute to more detailed costing of climate finance when enabled by supportive policy environments. We propose a typology describing the spectrum of NDC archetypes, reflecting the interaction between domestic and international factors, as well as bottom-up and top-down estimation approaches. Our findings underscore that climate finance quantification is both technical and political, with implications for transparency and resource mobilization potential of future NDCs. Policymakers should remove barriers to obtaining granular sectoral and climate data, demonstrate political commitment, and strengthen collaborations with subnational levels. Capacity-building initiatives should strengthen the institutional and stakeholder foundations of detailed NDCs. Climate finance consultants should prioritize knowledge transfer and sustained collaboration with domestic institutions.</div></div>","PeriodicalId":328,"journal":{"name":"Global Environmental Change","volume":"95 ","pages":"Article 103087"},"PeriodicalIF":9.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145613584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-01DOI: 10.1016/j.gloenvcha.2025.103085
Luan Marca , Marco Tulio Aniceto Franca , Jessica Antunes Oliveira , Kamila da Silva Baum
This study examines the association between heatwaves and female homicides in Brazil, using data from 5,341 municipalities (representing 95% of the country) from 2001 to 2021. Spatial econometric models are applied, and the results reveal a positive association between rising temperatures and the incidence of female homicides, with notable “hot spots” of domestic violence in the Northeast and Southeast regions. The preferred model explains approximately 43% of the variation in female homicides, reinforcing the robustness of the estimates. The research also shows that lower gender wage gaps and higher job stability are associated with reduced rates of female homicides. Overall, the findings indicate that climatic stressors such as heatwaves are associated with increased risks of violence against women, particularly in contexts of socioeconomic vulnerability. The study highlights that public policies aimed at addressing climate-related risks and promoting women’s economic empowerment may contribute to reducing this form of violence in a warming climate.
{"title":"Heatwaves and violence against women: a spatial analysis of female homicides in Brazil","authors":"Luan Marca , Marco Tulio Aniceto Franca , Jessica Antunes Oliveira , Kamila da Silva Baum","doi":"10.1016/j.gloenvcha.2025.103085","DOIUrl":"10.1016/j.gloenvcha.2025.103085","url":null,"abstract":"<div><div>This study examines the association between heatwaves and female homicides in Brazil, using data from 5,341 municipalities (representing 95% of the country) from 2001 to 2021. Spatial econometric models are applied, and the results reveal a positive association between rising temperatures and the incidence of female homicides, with notable “hot spots” of domestic violence in the Northeast and Southeast regions. The preferred model explains approximately 43% of the variation in female homicides, reinforcing the robustness of the estimates. The research also shows that lower gender wage gaps and higher job stability are associated with reduced rates of female homicides. Overall, the findings indicate that climatic stressors such as heatwaves are associated with increased risks of violence against women, particularly in contexts of socioeconomic vulnerability. The study highlights that public policies aimed at addressing climate-related risks and promoting women’s economic empowerment may contribute to reducing this form of violence in a warming climate.</div></div>","PeriodicalId":328,"journal":{"name":"Global Environmental Change","volume":"95 ","pages":"Article 103085"},"PeriodicalIF":9.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145619735","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-01DOI: 10.1016/j.gloenvcha.2025.103086
Ghazi Al-Rawas , Mohammad Reza Nikoo , Mohammad Reza Hassani , Seyyed Farid Mousavi Janbehsarayi , Mohammad Hossein Niksokhan
This study presents a novel framework for evaluating the long-term resiliency of flood management strategies in complex nonurban-urban watersheds, with a focus on the synergy between grey and green infrastructure. The methodology involves simulating hydrological conditions of both upstream and downstream areas using the SWMM model, followed by a two-stage scenario generation approach. The first stage optimizes the implementation of detention dams in the upstream nonurban region, while the second stage focuses on optimizing Green Infrastructure (GI) in the downstream urban area. By integrating grey and green flood control measures, a total of 2500 combined scenarios were generated and tested under extreme hurricane conditions to assess their resilience and economic feasibility. The results highlight that higher investments in both detention dams and GI significantly enhance system resiliency, and leads to faster recovery after flood events. Strategies with greater infrastructure investment maintained higher performance throughout sequential flood events, and exhibited smaller reductions in effectiveness during peak events. Conversely, lower-cost strategies experienced greater performance degradation. Then, using resilience performance threshold, we identified high-performing strategies and employed the Condorcet method to select the optimal scenario that balances long-term resiliency with cost-effectiveness. The selected strategy reduced peak flow at the urban area’s entrance by 85.7% and decreased local urban flood volume by 65.5%. Our research underscores the critical role of integrated grey-green infrastructure in achieving long-term flood resilience. Also, this framework provides decision-makers with actionable insights for designing cost-effective, high-resilience flood management strategies that consider both economic and community benefits.
{"title":"Synergistic long-range decision support for integrated green-grey flood management","authors":"Ghazi Al-Rawas , Mohammad Reza Nikoo , Mohammad Reza Hassani , Seyyed Farid Mousavi Janbehsarayi , Mohammad Hossein Niksokhan","doi":"10.1016/j.gloenvcha.2025.103086","DOIUrl":"10.1016/j.gloenvcha.2025.103086","url":null,"abstract":"<div><div>This study presents a novel framework for evaluating the long-term resiliency of flood management strategies in complex nonurban-urban watersheds, with a focus on the synergy between grey and green infrastructure. The methodology involves simulating hydrological conditions of both upstream and downstream areas using the SWMM model, followed by a two-stage scenario generation approach. The first stage optimizes the implementation of detention dams in the upstream nonurban region, while the second stage focuses on optimizing Green Infrastructure (GI) in the downstream urban area. By integrating grey and green flood control measures, a total of 2500 combined scenarios were generated and tested under extreme hurricane conditions to assess their resilience and economic feasibility. The results highlight that higher investments in both detention dams and GI significantly enhance system resiliency, and leads to faster recovery after flood events. Strategies with greater infrastructure investment maintained higher performance throughout sequential flood events, and exhibited smaller reductions in effectiveness during peak events. Conversely, lower-cost strategies experienced greater performance degradation. Then, using resilience performance threshold, we identified high-performing strategies and employed the Condorcet method to select the optimal scenario that balances long-term resiliency with cost-effectiveness. The selected strategy reduced peak flow at the urban area’s entrance by 85.7% and decreased local urban flood volume by 65.5%. Our research underscores the critical role of integrated grey-green infrastructure in achieving long-term flood resilience. Also, this framework provides decision-makers with actionable insights for designing cost-effective, high-resilience flood management strategies that consider both economic and community benefits.</div></div>","PeriodicalId":328,"journal":{"name":"Global Environmental Change","volume":"95 ","pages":"Article 103086"},"PeriodicalIF":9.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145657818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-01DOI: 10.1016/j.gloenvcha.2025.103076
Silja Klepp
This paper analyses how coastal governance and coastal protection infrastructure in Sicily are driven by specific interests that produce and stabilise unsustainable coastal protection practices and contribute to a coastal ‘disaster capitalism’. The driving logics of the coastal ‘disaster economy’ are rooted in mafia socionatures and rationalities of speculation and are reinforced by the widespread belief that coastal protection requires large-scale cement infrastructure. This belief is based on a dualistic divide between nature and culture and on narratives of controlling the sea. As these narratives appear to be consensual in Sicily, unsustainable coastal protection infrastructures become not only possible, but publicly desirable. The article is based on an analytical lens of political ecology and on extensive ethnographic research. I have also developed a tentative transformative research approach. This approach is based on the idea of shaping more just and sustainable coastal futures through public engagement and through art-based methods. Together with photographer Barbara Dombrowski, our vision was to create a space where the issue of coastal erosion could be discussed with reference to the photographs. The photos were taken during a joint research trip and in collaboration with local people. Alongside the ethnographic analysis, the photographs offer a fresh perspective on coastal erosion, one that emphasises the political and economic interests of powerful actors rather than the engineering perspectives that otherwise dominate. The photographs are currently being exhibited at various locations in Sicily, alongside public panel discussions.
{"title":"The politics of coastal erosion in Sicily: Concrete infrastructures and the economy of disaster","authors":"Silja Klepp","doi":"10.1016/j.gloenvcha.2025.103076","DOIUrl":"10.1016/j.gloenvcha.2025.103076","url":null,"abstract":"<div><div>This paper analyses how coastal governance and coastal protection infrastructure in Sicily are driven by specific interests that produce and stabilise unsustainable coastal protection practices and contribute to a coastal ‘disaster capitalism’. The driving logics of the coastal ‘disaster economy’ are rooted in mafia <em>socionatures</em> and rationalities of speculation and are reinforced by the widespread belief that coastal protection requires large-scale cement infrastructure. This belief is based on a dualistic divide between nature and culture and on narratives of controlling the sea. As these narratives appear to be consensual in Sicily, unsustainable coastal protection infrastructures become not only possible, but publicly desirable. The article is based on an analytical lens of political ecology and on extensive ethnographic research. I have also developed a tentative transformative research approach. This approach is based on the idea of shaping more just and sustainable coastal futures through public engagement and through art-based methods. Together with photographer Barbara Dombrowski, our vision was to create a space where the issue of coastal erosion could be discussed with reference to the photographs. The photos were taken during a joint research trip and in collaboration with local people. Alongside the ethnographic analysis, the photographs offer a fresh perspective on coastal erosion, one that emphasises the political and economic interests of powerful actors rather than the engineering perspectives that otherwise dominate. The photographs are currently being exhibited at various locations in Sicily, alongside public panel discussions.</div></div>","PeriodicalId":328,"journal":{"name":"Global Environmental Change","volume":"95 ","pages":"Article 103076"},"PeriodicalIF":9.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145598647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-01DOI: 10.1016/j.gloenvcha.2025.103084
Harikrishnan Ramesh Varma , Rahul B. Hiremath , Ravi Sharma
The Global South asserts its influence in the global climate discourse, challenging entrenched power structures and advocating for equitable solutions to climate change. Climate litigation is increasingly being used as a tool to address climate-related harms. Traditional climate litigation frameworks narrowly define ‘Global South Docket’ as cases filed within domestic courts of the Global South, overlooking transnational cases that address harm in the Global South but are filed in international courts or Global North jurisdictions. To address this gap, we introduce the concept of a Latent Global South Docket, encompassing cases with significant ties to the Global South regardless of jurisdiction. Through the systematic clustering of 831 cases filed between 1994 and 2023, the study identifies the emerging pathways in transnational climate litigation that underline the critical intersection of climate justice and sustainable development.
{"title":"Emerging pathways in climate litigation: Transnational justice and the Global South","authors":"Harikrishnan Ramesh Varma , Rahul B. Hiremath , Ravi Sharma","doi":"10.1016/j.gloenvcha.2025.103084","DOIUrl":"10.1016/j.gloenvcha.2025.103084","url":null,"abstract":"<div><div>The Global South asserts its influence in the global climate discourse, challenging entrenched power structures and advocating for equitable solutions to climate change. Climate litigation is increasingly being used as a tool to address climate-related harms. Traditional climate litigation frameworks narrowly define ‘Global South Docket’ as cases filed within domestic courts of the Global South, overlooking transnational cases that address harm in the Global South but are filed in international courts or Global North jurisdictions. To address this gap, we introduce the concept of a <em>Latent Global South Docket</em>, encompassing cases with significant ties to the Global South regardless of jurisdiction. Through the systematic clustering of 831 cases filed between 1994 and 2023, the study identifies the emerging pathways in transnational climate litigation that underline the critical intersection of climate justice and sustainable development.</div></div>","PeriodicalId":328,"journal":{"name":"Global Environmental Change","volume":"95 ","pages":"Article 103084"},"PeriodicalIF":9.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145657764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}