Climate Change Resilience Research Articles

V-FloodNet: A video segmentation system for urban flood detection and quantification

Effective monitoring and forecasting of urban flooding are crucial for climate change adaptation and resilience around the world. We proposed a novel and automatic system for urban flood detection and quantification. Our software takes image/video data of flooding as inputs because the such data source is easy to obtain and widely available compared with conventional water level sensors or flood gauges. First, the kernel of our system is a robust water region segmentation module that detects flooded regions together with surrounding reference objects from the scene. We combine image and video segmentation technologies to make the system reliable under varying weather and illumination conditions. Second, our system uses the detected situated objects to determine the inundation depth. Field experiments demonstrate that our segmentation results are accurate and reliable; and our system can detect flooding and estimate inundation depths from images and time-lapse videos. Our code is available at https://github.com/xmlyqing00/V-FloodNet.

Forest Ecosystem Services-Based Adaptation Actions Supported by the National Policy on Climate Change for Namibia: Effectiveness, Indicators, and Challenges

Forest ecosystem services are crucial in adaptation, mitigation, and increasing climate change resilience. Although most climate change policies promote adaptation actions in forest ecosystem services, there are limited studies focusing on the forest ecosystem services-based adaptation actions supported by the National Policy on Climate Change for Namibia (NPCC). This paper aims to assess the effectiveness of forestry adaptation actions of the NPCC. An independent t-test for non-categorical data was used for the statistical analysis to compare mean scores of the implementation effectiveness of adaptation actions and challenges before and after the NPCC implementation, according to the perceptions of forestry and climate change cross-sectoral experts. A p-value less than 0.05 (p < 0.05) was designated as the statistical significance. Adaptation actions in forest ecosystem services were significantly effective after the introduction of the NPCC. Biodiversity and carbon sequestration were significantly effective after the introduction of the NPCC. The most significant challenges identified were the lack of awareness, which affected adaptation actions before and after the policy. Afforestation, reforestation, awareness, and forestry research need strengthening to improve the effectiveness of the NPCC. Although our results showed that adaptation actions supported by the NPCC were generally effective after the introduction of the policy, we identified some implementation areas that require strengthening, mainly through research, to help in sound decision-making. We, therefore, recommend future research to analyze the strengths, weaknesses, threats, and opportunities (SWOT) of the NPCC and consequently design/propose a framework for forest ecosystem services-based adaptation actions in the policy to improve adaptation actions.

Flood Risk Assessment and Mapping in the Hadejia River Basin, Nigeria, Using Hydro-Geomorphic Approach and Multi-Criterion Decision-Making Method

Flood risk management is crucial for climate change resilience. The Hadejia River basin is known for severe and frequent floods, which have destroyed houses and farmlands and claimed many lives. This study developed a GIS-based flood risk and vulnerability mapping assessment using the Analytical Hierarchical Process (AHP) to outline scenarios that reduce risk and vulnerability associated with floods in the Hadejia River basin. The risk mapping of the basin integrated seven hydro-geomorphological indicators influencing extreme events (elevation, mean annual rainfall, slope, distance from rivers, soil type, and drainage density) and six socio-economic vulnerability indicators (population density, female population density, literacy rate, land use, employment rate, and road network) using a multi-criterion analysis. The average annual rainfall data of 36 years (1982–2018) were used for flood plain mapping in this study. Combining the flood hazard and socio-economic vulnerability indices of the basin revealed high-to-very high flood risk in the downstream and central upstream portions of the basin, which cover about 43.4% of the basin area. The local areas of Auyo, Guri, Hadejia, Ringim, Kafin Hausa, and Jahun were identified as zones at a very high flood risk. The study also revealed that flood hazard and vulnerability indicators have different influences on flood risk. The validated results resonate with the records of previous flood distribution studies of the basin. This research study is significantly important for developing strategic measures and policy revision through which the government and relief agencies may reduce the negative impact of floods in the Hadejia River basin.

Evaluation of urban infrastructure policies in Turkey for climate resilience and adaptation

ABSTRACT Turkey is a country vulnerable to the negative effects of climate change. In urban areas where most of the population lives, floods occur due to sudden, short-term but heavy rains caused by climate change. Infrastructure deficiencies have also caused considerable loss of life and property. I have discussed policies and practices of public administration formed by central government and local administrations focusing on climate change resilience and adaptation. I have also evaluated policy areas that need further development. This study can contribute to finding solutions to problems faced by cities in Turkey and other nearby countries. Findings show that participatory processes involving scientific and local knowledge can play a key role. Green and blue infrastructure with grey infrastructure and associated engineering solutions should also be used. Legislation should be updated to expand the use of nature-based solutions and green infrastructure, which should form a key focus of urban policy development.

Climate change education in the South Pacific: Resilience for whom?

AbstractClimate change education (CCE) can be an important tool to increase local community resilience. In 2017, the Pacific Community ratified the Framework for Resilient Development in the Pacific (FRDP) aiming to equip local communities with skills needed to become more climate change resilient. In 2018, Fiji implemented the Climate Change Resilience Programme (CCRP) at the University of the South Pacific (USP), the first of its kind in the South Pacific. This paper evaluates (i) the orientation and aim of the programme and (ii) how different stakeholders influenced the curriculum development process. Tribe's concept of curriculum space is used to highlight the overall aim of the CCRP. Freeman's stakeholder theory allows to identify key stakeholders and their influence on the curriculum. Results indicate that the programme seems to foster climate resilience in the workplace rather than the local community. Unfortunately, current and future community leaders, the notional targets of this course, were almost completely unrepresented in the process to accredit the course, with the body responsible for accreditation being dominated by industry representatives. This study helps to inform the current review of the Regional Certificate Programme to realign it with its initially envisioned community focus.

Opportunities and challenges of urban green open space for climate change mitigation and adaptation in Bogor, West Java

Urban green open space area is one of the strategies to deal with climate change mitigation and adaptation issues. As one of the relevant exemplifications of the “Urban Forest” concept and sustainable urban development, legal control of urban green open space is necessary to support the effort. This study examines urban green open space policies, practices, opportunities, and challenges in Bogor city regarding climate change mitigation and adaptation. Furthermore, local regulations, including legal issues, key players, and their roles in urban forest management were also discussed. A desk study with descriptive exploratory was implemented in this paper. The results showed that there are challenges in the implementation of urban green open space area policies into urban forest practices. The land size allocation for urban forests in Bogor, West Java, is still not by the existing policies as their land size is far less than 30%. Moreover, most local regulations have relatively paid little attention to private property policy. Local governments can enact local regulations for technical guidelines in short-term strategy as local regulations are expected to support the regional level of urban forests and green open space development. Multi stakeholders’ cooperation and community engagement are potential initiatives for urban forest development at the local government level for climate change resilience.

Stakeholder‐derived recommendations and actions to support deep‐reef conservation in the Western Indian Ocean

AbstractDeep reefs below 30 m provide essential ecosystem services for ocean health and human well‐being such as food security and climate change resilience. Yet, deep reefs remain poorly researched and largely unprotected, including in the Western Indian Ocean (WIO). Here, we assessed current conservation approaches in the WIO focusing on deep reefs, using a combination of online surveys and semi‐structured interviews. Results indicated that deep‐reef data are sparse and commonly stemming from non‐peer‐reviewed or non‐publicly available sources, and are often not used to inform conservation of WIO marine protected areas. Based on those findings, we co‐developed a framework with WIO stakeholders comprising recommendations linked to specific actions to be undertaken by regional actors to improve the capacity of the region to collect and share deep‐reef information. We hope this framework will enhance deep‐reef stewardship and management throughout the WIO and thus aid sustainable blue economic growth in the region.

“In-vivo” and “in-vitro” Experiments on the Influence of Compost Preparations and Heavy Metals on Soil Enzymes Activities and Soil Health


 Enriching soils with composts and organic waste material will be necessary because high C soils have strong climate change resilience and guarantee stable yields. Annually ≈1 billion tons of agricultural waste is produced which can be brought back to soils after adequate treatment and can relieve atmosphere from CO2. In a field trial municipal solid waste compost (MSW), sphagnum peat (WT), and black peat (HT) were tested. Basic soil parameters pH, C-content and plant nutrients (K, Mg) are significantly increased by MSW. WT and HT were uninfluential. Similar effects are found for microelements Fe, Mn, Zn, and Cu. MSW increased microelements significantly.

Review: Climate change resilience disconnect in rural communities in coastal Kenya. A rhetoric communication discord proliferated by COVID-19 pandemic

The world has been hit by consequential pandemics in the past two millennia. The COVID-19 pandemic has taken center stage, paralyzing vulnerable communities in the global south impacted by unprecedented climate vagaries. The focus of this study is COVID-19 and climate resilience communication rhetoric. In this context, we embed this study in response to the resilience of rural livelihoods to the COVID-19 crisis and climate resilience education communication rhetoric. We posit our review based on the following questions: Has COVID-19 worsened the climate resilience pathway for rural communities in coastal Kenya? Is the COVID-19 pandemic a proxy for climate resilience in rural livelihoods? How does COVID-19 communication rhetoric undermine climate resilience for vulnerable coastal communities in Kenya? Through a resilient theoretical paradigm, we enclose our view based on the existing literature along with climate resilience and COVID-19 proliferation. In light of the current state of COVID-19, the focus has shifted to the pandemic that will cover climate resilience. From the review, climate resilience pathway has been impacted by corona virus with noted funding response variations, in addition, even with the corona virus pandemic, climate resilience communication should be on-going rather than sporadic. Increasing the discursive process about climate change challenges is critical among Kenyan coastal communities. We recommend inclusion of climate resilience communication in existing policy frameworks as a salient solution to notable information discourse bottlenecks.

Projected Effects of Climate Change on the Energy Footprints of U.S. Drinking Water Utilities

Drinking water systems’ energy footprints depend mostly on the source, quality, and volume of water supply, but also on local temperature and precipitation, both of which are changing with the global climate. From a previous survey, we develop an equation for modeling relative changes in U.S. water utilities’ annual energy use, in which their energy use increases with temperature and decreases with precipitation. To demonstrate, we insert gridded projections from three scenarios in the EPA’s Climate Resilience Evaluation and Awareness Tool (CREAT) and compare 2035 and 2060 periods with a 1981–2010 baseline. Averaged over the continental United States, the 2060 central scenario projects 2.7 °C warmer temperatures and 2.9 cm more annual precipitation. For the same water demand, we estimate that these conditions will cause U.S. water systems’ energy use to change by −0.7% to 13.7% depending on the location (average 8.5% across all grid cells). Warming accounts for a general increase, and local changes in precipitation can add to or subtract from it. We present maps showing the spatial variability for each scenario. Water systems are essential infrastructure that support sustainable communities, and the analysis underscores their needs for energy management, renewable energy, water conservation, and climate change resilience.

From knowledge to action: multi-stakeholder planning for urban climate change adaptation and resilience in the Asia–Pacific

From knowledge to action: multi-stakeholder planning for urban climate change adaptation and resilience in the Asia–Pacific

Epigenetic mechanisms underlying the association between maternal climate stress and child growth: characterizing severe drought and its impact on a Kenyan community engaging in a climate change-sensitive livelihood

ABSTRACT Pastoralists in East Africa are among the world’s most vulnerable communities to climate change, already living near their upper thermal limits and engaging in a climate-sensitive livelihood in a climate change global hot spot. Pregnant women and children are even more at risk. Here, we report the findings of a study characterizing Samburu pastoralist women’s experiences of severe drought and outcomes in their children (N = 213, 1.8–9.6 y). First, we examined potential DNA methylation (DNAm) differences between children exposed to severe drought in utero and same-sex unexposed siblings. Next, we performed a high-dimensional mediation analysis to test whether DNAm mediated associations of exposure to severe drought with body weight and adiposity. DNAm was measured using the Infinium MethylationEPIC BeadChip array. After quality control; batch, chip, and genomic inflation corrections; covariate adjustment; and multiple testing correction, 16 CpG sites were differentially methylated between exposed and unexposed children, predominantly in metabolism and immune function pathways. We found a significant indirect effect of drought exposure on child body weight through cg03771070. Our results are the first to identify biological mediators linking severe drought to child growth in a low-income global hot spot for climate change. A better understanding of the mechanisms underlying the association between drought exposure and child growth is important to increasing climate change resilience by identifying targets for intervention.

Constructed Wetlands as a Solution for Sustainable Sanitation: A Comprehensive Review on Integrating Climate Change Resilience and Circular Economy

About eighty percent of wastewater is discharged into the environment untreated. Many challenges are decelerating solving the global sanitation problem, such as the financial limitations and lack of technical capacities. Parallel to this, many countries are facing a growing demand on their limited water resources. Higher water demand and limited availability leads to over-abstraction and deterioration in the availability and quality water resources. In this situation, wastewater can be a new water source. Therefore, there is a growing interest in finding low-cost, easy-to-operate and sustainable sanitation solutions. Constructed wetlands (CWs) in recent years have proved their capability in the sanitation sector as an appropriate sanitation system in different contexts, CWs have proved their ability to treat several types of wastewaters for several decades. Several benefits and facts, such as the low construction and operational costs of CWs, low-energy, and less operational requirements, have raised the interests in CWs as a treatment technology. Several studies have investigated CWs suitability based on different sustainability indices (technical, social, environmental, etc.). In this paper, a comprehensive review covers the definition, types, treatment processes, sustainability criteria, limitations, and challenges of CWs. The paper also focuses on climate change resilience and circular economic approach under the technical and financial criteria, respectively.

Does food biodiversity protect against malnutrition and favour the resilience to climate change-related events in Amazon Indigenous communities? A protocol for a mixed methods study.

Background : Undernutrition is projected to be a major consequence of climate change. Biodiversity could enhance climate change resilience by improving nutritional outcomes and providing healthy food resources during and/or after climate-related events. For Indigenous populations who currently base their diet on local biodiversity, rapid climate changes may affect their ability to produce, access or gather food and consequently impact their nutritional status. There is a knowledge gap regarding whether nutritional status among Indigenous populations is better among those who consume a diet with greater biodiversity than those who have a diet with low biodiversity. Objective : This study aims to investigate the role of food biodiversity (FBD) in nutritional resilience to extreme flooding events of Shawi Amazon Indigenous adults living in Peruvian communities that have experienced extreme floods in the past five years. Methods : This study will use a mixed-method sequential explanatory design. The quantitative component includes a cross-sectional survey to assess the association between food biodiversity (FBD) and the prevalence of anaemia in adults aged 15 to 60 years old (n=365). Anaemia will be evaluated using blood hemoglobin and serum ferritin. FBD will be measured with a food frequency questionnaire and a 24-hour dietary recall. Soil-transmitted helminth infections, malaria, and inflammatory biomarkers will also be evaluated. The qualitative component will include a community-based participatory approach to investigate the role of FBD in the responses to extreme floods. Male (n=14) and female (n=14) participants, previously identified in the quantitative phase with high and low levels of FBD, will be invited to participate in a Photovoice activity and semi-structured interviews. A analytical framework for climate change resilience will be used to integrate the data. Discussion : Findings will be integrated to identify nutritional resilience indicators that can inform adaptative interventions to changing climatic conditions in the Amazon and that respect Indigenous worldviews.

Transformative Adaptation Approaches and Climate Change Resilience, Preparedness and Sustainability

Transformative Adaptation Approaches and Climate Change Resilience, Preparedness and Sustainability

Future temperature-related mortality considering physiological and socioeconomic adaptation: a modelling framework

As the climate changes, it is crucial to focus not only on mitigation measures but also on building climate change resilience by developing efficient adaptation strategies. Although population adaptation is a major determinant of future climate-related health burden, it is not well accounted for in studies that project the health impact of climate change. We propose a methodological framework for temperature-related mortality that incorporates two simultaneous adaptation-sensitivity pathways: the physiological pathway, considering both heat adaptation and cold sensitivity, and the socioeconomic pathway, which is influenced by changes in future adaptive capacities. To demonstrate its utility we apply the framework to a case study mortality time-series dataset from Bavaria, Germany. In this modelling framework, we used extrapolated location-specific and age-specific baseline exposure-response functions and propose different future scenarios of cold sensitivity and heat adaptation on the basis of varying slopes of these exposure-response functions. We also incorporated future socioeconomic adaptation in the exposure-response functions using projections of gross domestic product under the respective shared socioeconomic pathways. Future adaptable fractions, representing the deaths avoided under each of the future scenarios, are projected under combinations of two climate change scenarios (shared socioeconomic pathway [SSP]1-2.6 and SSP3-7.0) and the respective plausible population projection scenarios (SSP1 and SSP3), also incorporating the future changes in demographic age structure and mortality. The case study for this framework was done for five districts in Bavaria, for both total non-accidental mortality and cardiovascular disease mortality. The baseline data was obtained for the period 1990-2006, and the future period was defined as 2083-99. In our Bavaria case study, average temperature was projected to increase by 2099 by an average of 1·1°C under SSP1-2.6 and by 4·1°C under SSP3-7.0. We observed the adaptable fraction to be largely influenced by socioeconomic adaptation for both total mortality and cardiovascular disease mortality, and for both climate change scenarios. For example, for total mortality, the highest adaptable fraction of 18·56% (95% empirical CI 10·77-23·67) was observed under the SSP1-2.6 future scenario, in the presence of socioeconomic adaptation and under the highest heat adaptation (10%) provided the cold sensitivity remains 0%. The cold adaptable fraction is lower than the heat adaptable fraction under all scenarios. In the absence of socioeconomic adaptation, population ageing will lead to higher temperature-related mortality. Our developed framework helps to systematically understand the effectiveness of adaptation mechanisms. In the future, socioeconomic adaptation is estimated to play a major role in determining temperature-related excess mortality. Furthermore, cold sensitivity might outweigh heat adaptation in the majority of locations worldwide. Similarly, population ageing is projected to continue to determine future temperature-related mortality. EU Horizon 2020 (EXHAUSTION).

Landscape Diversity Enhances Climate Change Resilience: A Review

The review aimed at understanding landscape diversity in the face of global population pressure, agricultural land shortages, food insecurity, and climate insecurity. We used published literature to determine whether landscape diversity improves resilience to climate change. Literature searches were performed using the Science Direct database, Google Scholar search engine, and the professional network ResearchGate using keywords. Land degradation, soil resilience, and natural resources from 2000 to 2019. 120 publications were searched, including journal articles, reports, and book chapters. Of these, 68 were considered more relevant and all were read and considered in writing this review. Climate change, food insecurity, and land degradation have been established to be major challenges for developing countries leading to the loss of genetic diversity. Our results show that the loss of proper habitat may allow fast-growing invaders to occupy the remaining limited resources. Therefore, alien species may accelerate invasion under human-induced land-use changes during times of global change. The time lag between range expansion and habitat loss has been thwarted. A golden window to prevent the spread of alien species established in the habitat.

Operationalizing resilience planning, theory, and practice: Insights from U.S. seaports

Academics and practitioners advocate climate change resilience planning to guide seaport management, business continuity planning, capital improvements, and so forth. Yet, questions of whether resilience planning interventions influence seaports' planning cultures and result in better prepared organizations remain underexplored. Through 10 cases of U.S. seaport resilience planning, this research explored the benefits and challenges of resilience planning and whether such efforts can enhance the adaptive capacity of a complex, multi-layered system such as a seaport. Results suggested that resilience planning interventions enhanced, inter alia, seaports' social capital with their internal and external stakeholders, and that seaports frequently identified and pursued infrastructure-related resilience enhancement strategies after completing resilience planning. Even when the sponsors of such studies intended an operational and business resilience purpose, they stated benefits consistent with adaptive management and resilience planning theories. Further, while key informants emphasized the strengthened relationships with stakeholders as benefits, they also frequently cited them as key challenges that require deliberative guidance and resources to help stakeholders effectively use products from resilience planning. Additional takeaways captured in this research provide valuable insights that can inform guidance materials designed to help seaports undertake their climate resilience-building endeavors.

Urban climate governance in Southeast Asian small and mid-sized cities: undermining resilience and distributing risks unevenly

ABSTRACT Secondary cities are home to most of the world’s urban populations vulnerable to climate change, yet researchers and policymakers have devoted less attention to them than large and megacities. To help address this gap, this paper explores the relationship between incomplete decentralized governance, climate change, and urban resilience. It does through the case studies of secondary cities of Cambodia, Myanmar, Thailand, and Vietnam. Secondary cities are of importance because they are the fastest growing cities in the Global South but also because they have weaker capacity to address climate risks. Through these case studies, the paper draws comparisons between the different cases to look at the linkages between decentralization and urban resilience in secondary cities. Overall, it argues that climate governance, due to the retention of power and resources by central bureaucrats along with fragmented governance structures, and misaligned incentive structures which prioritize economic growth over climate protection have undermined resilience building and contributed to the uneven distribution of climate risks in these cities.

Endogenous livelihood assets and climate change resilience in the Mezam Highlands of Cameroon

Endogenous livelihood assets and climate change resilience in the Mezam Highlands of Cameroon