Climate Change Mitigation Policies Research Articles

Climate change mitigation policies in agriculture: An overview of sociopolitical barriers

Climate change mitigation policies in agriculture: An overview of sociopolitical barriers

Sustainable transformation of energy sector: Cluster analysis for the sustainable development strategies of selected European countries

Implementing measures by the European countries within the framework of the ratification of the Paris Climate Agreement should ensure an enlarged share in energy production from alternative energy sources and the introduction of new alternative energy capacities, which would provide an annual decrease in carbon dioxide emissions growth rate, reduce anthropogenic pressure on the natural environment and the use of non-renewable natural resources while preserving biodiversity. This paper aims at forming a system of indicators of sustainable transformation of the energy sector and studying their influence on the policy of environmental-oriented development. The paper applies Ward's method for determining the optimal cluster number and discriminant analysis for checking which variables significantly influence the formation of countries' clusters. The six clusters of countries obtained describe the different features of decarbonisation and climate change mitigation policies. Using discriminant analysis helped to single out the most relevant indicators of the energy sector's transformation in the direction of its decarbonisation and climate change mitigation. The most significant indicators (energy efficiency, electricity production capacities for renewables and wastes, and share of energy from renewable sources) largely determine the pace and features of forming sustainable development strategies for the energy sector. By highlighting the relevant cluster groups in the study, their characteristic features, and ways of transformational processes in the energy sector were discovered. This enabled the authors to form specific directions for strengthening and activating the processes of decarbonisation of the energy sector and climate change mitigation. There outcomes can become the basis for further research and the formation of appropriate strategies for sustainable development and transformation of the energy sector. The results stemming from this study could help scholars and other affiliated persons determine future strategies for research for implementing Sustainable Development Goals 2030.

Міжнародні боргові метрики в контексті фінансування "зеленого" порядку денного

The article summarizes the public debt policy issues in the context of financing climate change measures, and suggests priorities and mechanisms of fiscal, debt and sectoral policies to ensure sufficient financing of the green agenda. Authors have emphasized the trilemma between achieving climate goals, maintaining fiscal sustainability, and ensuring political capacity. It has been found that even under favorable external financial conditions, climate-vulnerable countries face a constant premium to the cost of borrowing. As a result, developing countries with high levels of debt and climate vulnerability are caught in a vicious circle of growing investment needs for climate- sustainable structural transformation and significant dependence on increasingly expensive debt financing, which leads to a combination of deteriorating debt sustainability and insufficient funding for climate change challenges. Authors argue for a comprehensive multilateral policy aimed at reforming the international debt architecture and increasing the amount of available financing for climate change adaptation under a government-led framework. Achieving common goals requires a carefully calibrated combination of climate change mitigation instruments based on enhanced domestic revenue mobilization, in particular through carbon pricing, more efficient spending on transfers, green subsidies and investments, and regulatory measures. Authors propose a comprehensive approach to implementing climate change mitigation policies, including the implementation of a fiscal strategy, sectoral policies to prevent climate change, and stimulating private investment. Emphasized the importance of developing further tools for incorporating climate policy into debt sustainability analysis.

Recent Advances and Implications for Aviation Emission Inventory Compilation Methods

With the rapid development of industrialization and urbanization in China, civil aviation plays an increasingly important role in the transportation industry. However, pollutants and greenhouse gas (GHG) emissions from civil aviation are becoming an increasingly concerning environmental problem. In order to mitigate the resulting environmental pollution, such as air quality deterioration, regional and global climate warming, and declining human health, more and more efforts have been devoted to reducing both pollutants and GHG emissions. Among these efforts, emissions inventories from civil aviation provide a basis for quantifying pollutants and GHG emissions, establishing evaluation standards of environmental impact, and formulating management policies for both air quality improvement and climate change mitigation. In this paper, we reviewed both compilation approaches and data collection methods for civil aviation emissions inventories, introduced several typical calculation methods for aviation emissions inventories, and analyzed specific cases of actual application based on typical methods of inventory compilation. We also described in detail the activity level and emission index calculation methods of several pollutants and greenhouse gases. Furthermore, based on the above research methods, four typical application cases were investigated, including a specific airport, the landing and takeoff (LTO) cycle of a nation, the entire period with the LTO cycle and the climb–cruise–descent (CCD) phase of a country, and global emissions inventories from civil aviation. The results suggest that, in addition to quantifying the emissions of both pollutants and GHG produced by civil aviation, the selection of inventory compilation methods is likely to be important for improving aviation emission inventory accuracy and for further reducing the environmental, economic, and health impacts resulting from aviation emissions. Moreover, this paper can also provide a reference and theoretical basis for the development of aviation emission inventory compilation methods in the future.

Climate change mitigation policy for planetary health equity? An automated content analysis of countries’ nationally determined contribution reports

Abstract Introduction This study examines the extent to which national governments discuss the social determinants of planetary health equity (SDPHE) within their Nationally Determined Contribution reports (NDCs) to the UN Framework Convention on Climate Change. This is assessed relative to the frequency of discussion of economic factors and health outcomes, and how this varies between countries based on political, economic, and environmental factors.
Methods Using natural language processing, a dictionary-based automated content analysis was conducted of the frequency of terms within these reports. Correlation analyses examined the relationship between the frequency of dictionary categories and political, economic, and environmental variables to ascertain the role of contextual factors.
Results Overall, NDCs were found to feature a greater proportion of economic language compared to health outcome and SDPHE terms. Among the SDPHE, equity- and gender-related terms occurred most frequently. Correlations were identified primarily among high-income countries, that suggest moderate positive associations between levels of CO2 emissions per capita and per dollar of GDP and the use of economic terms, and a negative association of economic language with levels of democracy. Democracy was also positively associated with language related to social norms such as equity and justice, indicating potential scope for impact through democratic pressures.
Conclusion The relatively frequent use of economic frames in NDCs suggests that economic issues may receive more attention compared to the SDPHE. This analysis identifies potential enabling and constraining country-level factors for greater attention to the SDPHE in NDCs and more progressive climate change mitigation policymaking.

ECONOMIC AND INTERNATIONAL LEGAL ASPECTS OF HAZARDOUS WASTE MANAGEMENT REGULATION

It is evident that the implementation of effective climate change mitigation and environmental protection policies is contingent upon the rational management of hazardous waste. Empirical evidence suggests that the legal regulation of such waste at the national level is inadequate. Consequently, there is a pressing need for enhanced international cooperation and the establishment of robust international legal frameworks to address this issue. The purpose of the article is to analyse the existing international agreements governing hazardous waste management, identify their advantages and disadvantages, and propose changes necessary to improve the management of this type of waste. This included analysing statistical data on hazardous waste management. For a better understanding of the situation, an analysis of international court decisions was also carried out, which helped to identify the depth of the problems in this area. Methodology. General theoretical methods were mainly used in the study. Analysis and synthesis, systematic interpretation, and theoretical generalisation helped to summarise international approaches to hazardous waste management. Results. The article examines the content of international treaties in the field of hazardous waste management and the practice of their implementation. Practical implications. Based on the doctrinal provisions and the norms of current international law, the author identifies the main range of problems existing in the field of hazardous waste management and suggests possible ways of their solution. Value / Originality. It is determined that an important step in improving the effectiveness of international treaties in the field of hazardous waste management is to strengthen control over their implementation, since in practice there is a systematic violation of them.

Drought and warming interaction cause substantial economic losses in the carbon market potential of China's northern grasslands

Grasslands are being threatened by global drought and warming. Economic assessments of changing grassland carbon sequestration, a prerequisite for nature-based climate-change mitigation policies, are limited when researchers inadequate consider interactions between drought and warming. Here, we quantified the responses of 35 grass biomasses to combined drought and warming, based on manipulation experiments from 34 peer-reviewed papers; subsequently, we matched them with grasslands in northern China—the eastern range of the larger Eurasian Steppe—and further projected the economic implications for carbon market trading and carbon-sequestration costs. The results show that carbon sequestration in all grassland types, except for forbrich steppe, was significantly reduced by the synergistic interactions of drought and warming. Approximately 10 % of the grasslands in central Xinjiang, identified as forbrich steppe, showed resilience to these stressors. In contrast, the rest of northern China's grasslands suffered increased carbon losses due to drought and warming. The combined effects of drought and warming have caused a loss of 1.6 × 104 million Chinese yuan (CNY) in revenue and excess carbon-sequestration costs exceeding 1.1 × 105 million CNY. Overall, our study results indicate that the synergistic effects of drought and warming significantly undermine the economic viability of carbon sequestration in most of northern China's grasslands. As climate change intensifies, understanding and incorporating the complex interactions of drought and warming can aid in the sustainable management of grassland ecosystems and the development of effective climate-change mitigation policies in arenas, including carbon markets.

Can the court bridge the gap? Public perception of economic vs. generational inequalities in climate change mitigation policies

Abstract Climate change and most climate policies affect and reinforce different forms of inequalities. For instance, climate change policies that aim to change consumer behavior by increasing the price tag of goods and services that cause carbon emissions often carry a disproportionately higher burden (in terms of financial cost) to those with lower incomes. They can thereby either exacerbate existing income inequalities or contribute to generating new ones. Meanwhile, refraining from engaging with climate mitigation policies will incur other detrimental societal costs: the financial burden and the harmful consequences of climate change that future generations will have to bear if nothing is done. In this paper, we examine how the immediate economic inequality citizens face from climate mitigation policies (regarding carbon taxation) weighs against the long-term generational inequalities future generations will experience. We study how both types of inequality relate to policy support for climate change mitigation policies in the context of Germany. The German case is of special interest because a recent court ruling of the Federal Constitutional Court allows us to test whether making people aware of a new legal reality can bridge the gap between the economic and generational inequality. Our findings using a between-subjects survey experiment fielded among German citizens (N = 6,319) in 2022 show that immediate economic concerns trump future generational concerns, generally making citizens less supportive of the policy. This negative support is however somewhat mitigated by the supportive signal from the court ruling.

Assembling Multi-Temporal Resilience on the Eastern Coast of India

ABSTRACT This article explores how the Sundarbans residents and migrants on the eastern coast of India build multitemporal resilience. While extreme weather events have different rhythms, local governance, including climate change mitigation policies and state initiatives to manage the aftermaths of extreme weather events, also create temporalities. We analyse how people assemble these temporalities in their quest for more secure livelihoods and housing. By examining two interrelated practices – waiting and establishing patronage relationships – we argue, first, that resilience is not built by isolated individuals or communities; instead, it is relational and multitemporal. Second, we contribute to the questioning of climate reductionism and climate reductionist understandings of resilience by showing that people not only build resilience to climate change impacts and environmental changes but also policies and power structures. Third, we contend that lived resilience is not merely about coping but also encompasses the ability to develop critical discourses and influence governance.

The Interrelation between Obesity Management and Climate Change in Greece

Two major global problems of our era are climate change and obesity. Both are interlinked and interconnected having undesired social, economic, environmental impacts as well as harmful impacts on human health. The rate of obesity and overweight in children and adults in Greece is high compared to other EU countries causing many health, social and economic problems. Climate change is foreseen to have severe and harmful impacts in Greece as well as in other Mediterranean countries altering the climate conditions. Obesity and its treatment mitigate climate change, mainly due to the change in the dietary pattern of the treated patients. The proposed diets for managing obesity, based on Mediterranean dietary patterns, have less GHG emissions and lower climate footprint. Climate change makes more difficult the treatment of obesity, mainly due to the rising temperatures. Climate change has undesired and harmful impacts on obesity treatment in Greece while obesity treatment results in the mitigation of climate change in the country. Future policies for climate change mitigation and managing obesity in Greece should take into account their mutual interconnections and interlinkages in order to maximize their effectiveness in treating these two severe pandemics in the country.

The North-South divide and everything that gets left out in-between: conceptualizing Central and Eastern Europe to explain its positioning on climate change

The North-South divide forms the central axis along which scholars study the contemporary global order. Yet many countries fall in-between the cracks of a world divided into core and periphery. This paper develops a structural account to understand the position of countries in this space of in-betweenness. The focus is on Central and Eastern Europe. I draw on already existing scholarship on liminalities, the varieties of capitalism and transition studies to argue that a liminal identity of in-betweenness goes hand-in-glove with a domestic logic of transitioning, as the state seeks to move somewhere else. Furthermore transitioning dynamics position the state in the semi-periphery, as the transition to the civilizational core requires capital and know-how from abroad. The resulting semi-peripheral position further underlines the liminal identity. The paper uses this apparatus to understand why CEE countries are typically climate change laggards within the EU. Their continuing liminal identity results in frustration over and resistance against the schooling tendencies of Brussels and Western European capitals. The dynamics of a sense of imposition of climate change mitigation policies stem from CEE’s liminal positioning as apprentices, but the reasons for the perceived alienness of such policies are located in domestic societal dynamics, and CEE countries’ economic structure. The specific political structures of communism and the communist transition have strengthened particularistic personal ties of friendship and family between individuals and the localities they live in, while simultaneously weakening general and abstract conceptions of the public good. Accordingly initiatives for preserving specific localities can be strong, but conceptions of protecting an abstract, global climate, are not well developed. Additionally, the material costs of protecting the climate are higher in post-communist economies due to their comparative advantage in resource and labour intensive industries, their reliance on foreign capital, and a lack of domestic innovations.

Exploring how the heterogeneous urban landscape influences CO2 concentrations: The case study of the Metropolitan Area of Barcelona

Monitoring CO2 concentrations in urban areas is crucial for determining the efficacy of climate change mitigation policies. However, highly heterogeneous land use, local geography, and local convection patterns, which vary throughout the urban landscape, complicate this task. To establish continuous monitoring programs, it is important to first determine the heterogeneity of urban landscapes on the ground. To understand the role these factors play in the distribution of CO2 over an urban area, we conducted a CO2 measurement campaign over the Metropolitan Area of Barcelona (AMB) over four urban land uses: impervious, green, forest, and agricultural. There is a clear tendency for CO2 mixing ratios to decrease as the degree of urban vegetation increases, even in the midst of a developed boundary layer. For example, CO2 concentrations were 429 and 427 ppm at forest and agricultural sites, respectively, while 485 ppm was reported at urban sites. A decrease in atmospheric CO2 was observed from 458 to 428 ppm in the gradient from urban to suburban areas, in which the biosphere component increased. The biosphere component of the CO2 signal was significant and was observed in the gradient from urban to suburban areas, which averaged a reduction from 458 to 428 ppm. Our findings show that the large spatial variability in CO2 concentrations (ranging from 410 to 495 ppm) is best explained by anthropogenic activity. We propose increasing the spatiotemporal resolution of CO2 monitoring in the AMB to determine these trends more precisely over longer periods of time.

Evaluation of Climate Change Mitigation Policies in Developed Vs Developing Countries

Purpose: The aim of the study was to analyzing the evaluation of climate change mitigation policies in developed vs developing countries. Methodology: This study adopted a desk methodology. A desk study research design is commonly known as secondary data collection. This is basically collecting data from existing resources preferably because of its low cost advantage as compared to a field research. Our current study looked into already published studies and reports as the data was easily accessed through online journals and libraries. Findings: The evaluation of climate change mitigation policies reveals distinct findings between developed and developing countries. Developed nations typically show higher levels of policy implementation and technological adoption aimed at reducing greenhouse gas emissions, resulting in measurable declines in carbon intensity across sectors. Unique Contribution to Theory, Practice and Policy: Environmental kuznets curve (EKC) theory, diffusion of innovations theory & dependency theory may be used to anchor future studies on evaluation of climate change mitigation policies in developed vs developing countries. Prioritizing capacity building initiatives and technology transfer programs in developing countries supports practical implementation of climate mitigation strategies. Advocating for equitable climate finance mechanisms ensures adequate funding and financial incentives for developing countries to implement climate mitigation actions.

A critical review of climate change mitigation policies in the EU ——based on vertical, horizontal and policy instrument perspectives

The European Union (EU) has consistently held a prominent global position in climate governance. This paper compiles 152 climate neutrality policies issued by the European Commission (EU Commission) and employs a systematic analytical framework including "Vertical Policy Hierarchy - Horizontal Policy Path – Systematic Policy instruments" to conduct an in-depth analysis of the EU's climate neutrality policy system.This study produces several findings as follows: First, the EU's climate neutrality policy hierarchy is characterized by a structure comprising "Long-Term Planning – Specific Measures - Financial Support". Second, the EU's policy formulation process for climate neutrality emphasizes the integration of a multi-party engagement mechanism involving "Nongovernmental Level - Regional Level - National Level - Transnational Level - Supranational Level", while extensively employing a "framework-content" policy-making methodology. Third, the EU's climate neutrality governance is guided by the dual objectives of achieving a "Cleaner Energy Structure" and "Recover Ecological Environment" pursuing a broad-ranging and multi-tiered policy pathway towards climate neutrality. Fourth, the EU leverages a combined approach of mandatory measures and guiding policies to propel the climate neutrality governance process, aspiring to achieve breakthroughs in new energy technology innovation through climate neutrality governance, thereby solidifying its international standing. Moreover, this study provides an outlook on the future of the EU's climate neutrality policy governance, positing that the EU's emphasis on climate neutrality governance will remain undiminished, with a heightened focus on guiding policies and an emphasis on the roles of enterprises and the public in advancing the realization of climate neutrality.

Harmonizing existing climate change mitigation policy datasets with a hybrid machine learning approach

With the rapid proliferation of climate policies in both number and scope, there is an increasing demand for a global-level dataset that provides multi-indicator information on policy elements and their implementation contexts. To address this need, we developed the Global Climate Change Mitigation Policy Dataset (GCCMPD) using a semisupervised hybrid machine learning approach, drawing upon policy information from global, regional, and sector-specific sources. Differing from existing climate policy datasets, the GCCMPD covers a large range of policies, amounting to 73,625 policies of 216 entities. Through the integration of expert knowledge-based dictionary mapping, probability statistics methods, and advanced natural language processing technology, the GCCMPD offers detailed classification of multiple indicators and consistent information on sectoral policy instruments. This includes insights into objectives, target sectors, instruments, legal compulsion, administrative entities, etc. By aligning with the sector classification of the Intergovernmental Panel on Climate Change (IPCC) emission datasets, the GCCMPD serves to help policy-makers, researchers, and social organizations gain a deeper understanding of the similarities and distinctions among climate activities across countries, sectors, and entities.

Underestimation of Thermogenic Methane Emissions in New York City.

Recent studies have shown that methane emissions are underestimated by inventories in many US urban areas. This has important implications for climate change mitigation policy at the city, state, and national levels. Uncertainty in both the spatial distribution and sectoral allocation of urban emissions can limit the ability of policy makers to develop appropriately focused emission reduction strategies. Top-down emission estimates based on atmospheric greenhouse gas measurements can help to improve inventories and inform policy decisions. This study presents a new high-resolution (0.02 × 0.02°) methane emission inventory for New York City and its surrounding area, constructed using the latest activity data, emission factors, and spatial proxies. The new high-resolution inventory estimates of methane emissions for the New York-Newark urban area are 1.3 times larger than those for the gridded Environmental Protection Agency inventory. We used aircraft mole fraction measurements from nine research flights to optimize the high-resolution inventory emissions within a Bayesian inversion. These sectorally optimized emissions show that the high-resolution inventory still significantly underestimates methane emissions within the New York-Newark urban area, primarily because it underestimates emissions from thermogenic sources (by a factor of 2.3). This suggests that there remains a gap in our process-based understanding of urban methane emissions.

The largest European forest carbon stocks are in the Dinaric Alps old-growth forests: comparison of direct measurements and standardised approaches

BackgroundCarbon (C) sink and stock are among the most important ecosystem services provided by forests in climate change mitigation policies. In this context, old-growth forests constitute an essential reference point for the development of close-to-nature silviculture, including C management techniques. Despite their small extent in Europe, temperate old-growth forests are assumed to be among the most prominent in terms of biomass and C stored. However, monitoring and reporting of C stocks is still poorly understood. To better understand the C stock amount and distribution in temperate old-growth forests, we estimated the C stock of two old-growth stands in the Dinaric Alps applying different assessment methods, including direct and indirect approaches (e.g., field measurements and allometric equations vs. IPCC standard methods). This paper presents the quantification and the distribution of C across the five main forest C pools (i.e., aboveground, belowground, deadwood, litter and soil) in the study areas and the differences between the applied methods.ResultsWe report a very prominent C stock in both study areas (507 Mg C ha− 1), concentrated in a few large trees (36% of C in 5% of trees). Moreover, we found significant differences in C stock estimation between direct and indirect methods. Indeed, the latter tended to underestimate or overestimate depending on the pool considered.ConclusionsComparison of our results with previous studies and data collected in European forests highlights the prominence of temperate forests, among which the Dinaric Alps old-growth forests are the largest. These findings provide an important benchmark for the development of future approaches to the management of the European temperate forests. However, further and deeper research on C stock and fluxes in old-growth stands is of prime importance to understand the potential and limits of the climate mitigation role of forests.

Eco-efficient asphalt recycling for urban slow mobility

Cycling infrastructures contribute to advancing zero-impact transport systems, aligning with the European Commission’s proactive climate change mitigation policies. This paper explores the potential of innovative and sustainable pavements for cycling paths with mixtures composed of road-milling materials. This investigation involves low-environmental-impact bituminous-based mixtures differing from recipe, mixing method, and laying. Up to 100% secondary aggregates are used as alternative materials to design the Grande Raccordo Anulare delle Biciclette (GRAB), a 44-km cycling ring in Rome. According to the European standard EN 15804, their “from cradle to gate” life cycle analysis allows a comprehensive assessment and comparison of the environmental impact. Core and additional environmental impact categories and resource use indicators were quantified using primary data from asphalt producers and secondary data from the Ecoinvent database in the SimaPro software. Within the H2020 InfraROB project (grant agreement no. 955337), which aims at enhancing road infrastructure integrity, performance, and safety through autonomous robotic solutions and modularization, experimental sections have been constructed using a cold-mixed asphalt composed entirely of recycled asphalt and a rejuvenating additive. The results underscore the potential of the examined low-impact approach in conserving Earth’s resources, ensuring long-lasting infrastructure for vulnerable urban populations and fostering sustainable environmental management.

Navigating climate change complexity and deep uncertainty: approach for building socio-ecological resilience using qualitative dynamic simulation

The consequences of climate change on different sectors of society are interrelated. The threats posed by rising global temperatures, intensifying extreme weather events, and shifting climatic patterns are becoming increasingly evident all around the world. Policymakers face the daunting task of assessing climate change risks, encompassing impacts and response strategies, to guide sustainability transformations. In this study, we introduce a four-step qualitative Decision Making Under Deep Uncertainty (DMDU) approach in the context of Climate Change Impact Assessments (CCIA). Our goal is to enhance the integration of CCIA into spatial planning, particularly in the Global South, using qualitative system dynamics simulation. Emphasizing the value of qualitative DMDU, we explore vulnerability and resilience through a lens of multi-sectoral and multi-scalar socio-ecological processes. We exemplify our approach by applying CCIA to the coastal zone of Yucatán, Mexico, accounting for social and environmental heterogeneity across the four Regions in which it is administered. Results identify the optimal allocation of climate change mitigation and adaptation policies to address specified resilience in each Region, all of which are required to achieve the overall resilience of the coastal zone. We argue that our qualitative DMDU approach provides an analytical platform to address the trade-offs inherent in the ranking of multiple vulnerabilities related to achieving general resilience.

Progress and challenges in remotely sensed terrestrial carbon fluxes

ABSTRACT Accurate evaluation of terrestrial carbon balance is essential for designing climate change mitigation policies, and capabilities of remote sensing techniques in monitoring carbon fluxes are widely recognized for their great contributions to regional and global carbon budget accounting. In this review, we synthesized satellite-based data and methodologies to estimate the main flux components of terrestrial carbon balance and their uncertainties over the past two decades. The global gross primary production (GPP) during the period 2001–2022 is 134 ± 14 PgC yr−1, and nearly half of them occurs in tropical forest regions such as South America and Africa. Less than 2% of global GPP is converted into a net carbon sink of 2.28 ± 1.12 PgC yr−1 using satellite-based atmospheric inversion during 2015–2020, and this sink is comparable to the stock change-based estimate (2.49 PgC yr−1) but twice as large as model-based estimate (1.08 ± 0.78 PgC yr−1). By decomposing satellite-derived net carbon balance into different terms including satellite-derived carbon emissions from land-use change and wildfires (3.55 PgC yr−1), we inferred that ~ 43% of global GPP would be respired through soil microbes (57.1 PgC yr−1), but which is higher than the previous bottom-up estimate (39–46 PgC yr−1). We then propose that an accurate remote sensing of terrestrial carbon balance requires to enhance representations of photosynthetic responses to rising CO2 and disturbances, develop satellite-constrained belowground carbon dynamics and separate natural fluxes from anthropogenic CO2 emissions, by integrating multi-source satellite sensors in orbit, revolutionized remote sensing capabilities with focused field campaigns in data-scarce regions.