Resources Policy最新文献_第2页

Governing mined landscapes through memory: Afro-centred approaches to post-extractive transitions 通过记忆管理开采景观：以非洲为中心的开采后过渡方法

IF 10.2 2区经济学

Resources Policy Pub Date : 2025-09-12 DOI: 10.1016/j.resourpol.2025.105734

Úrsula de Azevedo Ruchkys , Eduardo Evangelista Ferreira , Múcio do Amaral Figueiredo , Alice Ruchkys

{"title":"Governing mined landscapes through memory: Afro-centred approaches to post-extractive transitions","authors":"Úrsula de Azevedo Ruchkys , Eduardo Evangelista Ferreira , Múcio do Amaral Figueiredo , Alice Ruchkys","doi":"10.1016/j.resourpol.2025.105734","DOIUrl":"10.1016/j.resourpol.2025.105734","url":null,"abstract":"<div><div>This article examines the heritage-making of the Du Veloso Mine, located in the Quadrilátero Ferrífero—one of Brazil's most strategic mining regions—as a process of post-extractive, Afro-centred governance led by community actors in a context of institutional absence. Grounded in Evolutionary Governance Theory (EGT), the study interprets heritage-making as path creation, in which symbolic disputes, material legacies, and institutional reconfigurations are mobilised through a lens of historical justice. The research adopts a qualitative approach that combines interpretive analysis of the guided tour, an interview with the site manager, and the complementary application of the Relevance Determinancy Analysis (RDA) and Competitive Performance Analysis (CPA) frameworks, used as auxiliary tools to capture public perceptions and symbolic effects. The findings indicate that the site's symbolic legitimacy is primarily shaped by its Afro-centred narrative, the role of community mediation, and the emotional connection experienced by visitors. Du Veloso Mine's development reflects a new approach to heritage that challenges technocratic and Eurocentric frameworks, reimagining the subsoil as a space of memory, Black agency, and territorial transformation. The study suggests that policies for post-mining areas should give greater attention to symbolic and emotional aspects as integral parts of resource governance, particularly in historically marginalised settings where state presence is limited.</div></div>","PeriodicalId":20970,"journal":{"name":"Resources Policy","volume":"110 ","pages":"Article 105734"},"PeriodicalIF":10.2,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145048148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metal mining decarbonisation scenarios – Ontario's path towards net zero GHG emissions 金属采矿脱碳情景——安大略省实现温室气体净零排放的道路

IF 10.2 2区经济学

Resources Policy Pub Date : 2025-09-11 DOI: 10.1016/j.resourpol.2025.105732

Michelle Y. Levesque

{"title":"Metal mining decarbonisation scenarios – Ontario's path towards net zero GHG emissions","authors":"Michelle Y. Levesque","doi":"10.1016/j.resourpol.2025.105732","DOIUrl":"10.1016/j.resourpol.2025.105732","url":null,"abstract":"<div><div>Mining is crucial for providing minerals to meet decarbonisation goals to restrict global temperature increases as proposed in the Paris Agreement. To ensure alignment with Paris Agreement objectives, some mining companies have set decarbonisation targets for 30 % greenhouse gas (GHG) emission reduction by 2030 and net zero emissions by 2050. Consequently, mining companies have developed decarbonisation roadmaps. The purpose of this study is to investigate the current and future GHG emission profiles of mines along with the impact of implementing the main technologies included in these decarbonisation roadmaps. A model was developed to assess various strategies for reaching climate change targets. The study was limited to Ontario metal mines, where 14 scenarios with varying technology adoption rates were modeled. The decarbonisation technologies investigated in this study included battery electric vehicles (BEVs), ventilation control strategies (VCS), and general energy management. Results showed that the 30 % GHG emission reduction is achieved between 2032 and 2035 for the more optimistic scenarios, or from 2038 to 2040 for the more conservative cases. GHG emission reductions in 2050 range from 67 to 74 % where displacing diesel equipment with battery electric vehicles (BEVs) was the initiative that produced the largest impact. Results showed that continued adoption of existing technologies and low emission grid electricity could significantly impact the mining sector GHG emission profile, however additional decarbonisation measures and efforts from various stakeholders will be required to reach established targets.</div></div>","PeriodicalId":20970,"journal":{"name":"Resources Policy","volume":"110 ","pages":"Article 105732"},"PeriodicalIF":10.2,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145048147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Digging deeper: Assessing the trade-offs of domestic cobalt mining in the United States of America 深入挖掘：评估美国国内钴矿开采的权衡

IF 10.2 2区经济学

Resources Policy Pub Date : 2025-08-29 DOI: 10.1016/j.resourpol.2025.105729

Chava Makman, Brandon Marc Finn

{"title":"Digging deeper: Assessing the trade-offs of domestic cobalt mining in the United States of America","authors":"Chava Makman, Brandon Marc Finn","doi":"10.1016/j.resourpol.2025.105729","DOIUrl":"10.1016/j.resourpol.2025.105729","url":null,"abstract":"<div><div>Cobalt is a critical mineral for the global shift to decarbonized energy systems. Cobalt supply chains, however, raise urgent questions about their stability and environmental impact, and are embroiled in human rights issues. Recent U.S. federal initiatives have intensified efforts to onshore critical mineral mining. The goals of onshoring include securing domestic sources and reducing China's dominance over mineral supply chains. Although large cobalt deposits are rare in the U.S., southeastern Idaho has a significant and untapped source. Accessing U.S domestic reserves of cobalt, like other critical minerals, involves complex trade-offs at the intersection of decarbonization, national security, and global supply chain dynamics. Drawing on qualitative interviews with diverse stakeholders, this study unpacks these trade-offs and challenges. These interrelated challenges include environmental degradation, access and quality of reserves, economic interests, and the disproportionate risks of mining to Indigenous communities. We integrate expert and community perspectives to highlight the profound moral complexities at the core of U.S. critical mineral onshoring efforts, exemplified through cobalt mining. We urge policymakers and scholars to grapple with the layered consequences of cobalt mining and demonstrate that sustainability questions must necessarily be considered across geographies and contexts.</div></div>","PeriodicalId":20970,"journal":{"name":"Resources Policy","volume":"109 ","pages":"Article 105729"},"PeriodicalIF":10.2,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strategic potential assessment of lanthanum and scandium through geochemical-lithological analysis with unsupervised machine learning in southern Ecuador 在厄瓜多尔南部，通过无监督机器学习的地球化学-岩性分析对镧和钪的战略潜力进行评估

IF 10.2 2区经济学

Resources Policy Pub Date : 2025-08-26 DOI: 10.1016/j.resourpol.2025.105731

Marco A. Cotrina-Teatino , Jairo J. Marquina-Araujo , Jose N. Mamani-Quispe , José A. Guartán , Aldo R. Castillo-Chung , Solio M. Arango-Retamozo , Joe A. González-Vasquez , Salomon M. Ortiz-Quintanilla

{"title":"Strategic potential assessment of lanthanum and scandium through geochemical-lithological analysis with unsupervised machine learning in southern Ecuador","authors":"Marco A. Cotrina-Teatino , Jairo J. Marquina-Araujo , Jose N. Mamani-Quispe , José A. Guartán , Aldo R. Castillo-Chung , Solio M. Arango-Retamozo , Joe A. González-Vasquez , Salomon M. Ortiz-Quintanilla","doi":"10.1016/j.resourpol.2025.105731","DOIUrl":"10.1016/j.resourpol.2025.105731","url":null,"abstract":"<div><div>The preliminary identification of areas with strategic geochemical potential poses a major challenge in mineral exploration when only surface-level and unclassified data are available. This study aimed to integrate geostatistical techniques with unsupervised machine learning algorithms to classify zones of high, medium, and low potential for lanthanum (La) and scandium (Sc) in southern Ecuador. A database comprising 3998 geochemical samples was used, with concentrations estimated via Ordinary Kriging (OK), employing variogram structures tailored to each element. The K-means, Gaussian Mixture Models (GMM), Mini-Batch K-means (MBKM), and Spectral Clustering (SC) algorithms were applied to the interpolated values to achieve automated spatial segmentation. Validation against a traditional percentile-based classification yielded high accuracy, with SC (accuracy = 0.898) and KM (0.860) performing best for La, and GMM (0.899) for Sc. Additionally, total metal contents per zone were estimated, reaching up to 725.10 t of La (average grade: 11.98 mg/kg) and 103.23 t of Sc (average grade: 2.08 mg/kg) in medium-potential zones according to GMM and SC, respectively. Strong lithological associations were identified, particularly highlighting the JUB unit as key for scandium occurrence. Overall, the results confirm that the combination of kriging and unsupervised clustering enables effective classification of mineralogical domains with high spatial coherence, providing a robust tool for prioritizing target areas in early exploration stages.</div></div>","PeriodicalId":20970,"journal":{"name":"Resources Policy","volume":"109 ","pages":"Article 105731"},"PeriodicalIF":10.2,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144894880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Connectedness between gold, copper, fossil fuels, and major stock markets: Implications for portfolio management 黄金、铜、化石燃料和主要股票市场之间的联系：对投资组合管理的影响

IF 10.2 2区经济学

Resources Policy Pub Date : 2025-08-26 DOI: 10.1016/j.resourpol.2025.105728

Farzaneh Ahmadian-Yazdi , Walid Mensi , Khamis Hamed Al-Yahyaee , Manijeh Ramsheh , Sami Al-Kharusi

{"title":"Connectedness between gold, copper, fossil fuels, and major stock markets: Implications for portfolio management","authors":"Farzaneh Ahmadian-Yazdi , Walid Mensi , Khamis Hamed Al-Yahyaee , Manijeh Ramsheh , Sami Al-Kharusi","doi":"10.1016/j.resourpol.2025.105728","DOIUrl":"10.1016/j.resourpol.2025.105728","url":null,"abstract":"<div><div>This study explores the dynamic connectedness between commodity futures (copper, Brent oil, natural gas, and gold) and pivotal stock markets in Japan, France, Canada, Germany, the U.S., China, and Italy using the time-varying parameter vector-autoregressive (TVP-VAR) model of Antonakakis et al. (2020). Moreover, we analyze portfolio design using multivariate optimal weights by relying on the Minimum Variance Portfolio (MVP), Minimum Correlation Portfolio (MCP), and Minimum Connectedness Portfolio (MCoP) approaches, as well as bivariate optimal weights and hedge ratios using the Broadstock et al. (2022) method. The results show that the French and German stock market returns are the main shock drivers in the network. However, natural gas is the least contributor of shocks to the network and can be used as a hedge asset. Furthermore, all commodity markets are net shock receivers in the system. The spillovers between commodity and stock markets experience a jump during extreme event periods. However, the results reveal that investors should hold more gold than other commodities to equity portfolios, irrespective of market status, under the MVP and MCP approaches. Moreover, we show that the cheapest strategies with significant hedging effectiveness (HE) values are the Shanghai Stock Exchange (CN)/Brent oil in normal mode, Germany and the Shanghai Stock Exchange/Brent oil in bearish mode, and gold/Italy and Brent oil in bullish mode. Conversely, the most expensive strategies are Brent oil/Canada in the normal mode, Italy and Germany/France in the bearish mode, and gold/Italy and Brent oil in the bullish mode.</div></div>","PeriodicalId":20970,"journal":{"name":"Resources Policy","volume":"109 ","pages":"Article 105728"},"PeriodicalIF":10.2,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144894881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Allies and enemies: On the political determinants of trade in critical minerals 盟友与敌人：论关键矿产贸易的政治决定因素

IF 10.2 2区经济学

Resources Policy Pub Date : 2025-08-21 DOI: 10.1016/j.resourpol.2025.105701

Markos Farag , Chahir Zaki

{"title":"Allies and enemies: On the political determinants of trade in critical minerals","authors":"Markos Farag , Chahir Zaki","doi":"10.1016/j.resourpol.2025.105701","DOIUrl":"10.1016/j.resourpol.2025.105701","url":null,"abstract":"<div><div>While trade in critical minerals is increasingly shaped by geopolitical tensions, most existing studies emphasize economic factors and overlook the role of political alignment. This paper addresses that gap by examining how political dissimilarity – measured through UN voting patterns – affects bilateral trade in critical minerals, which are essential to renewable energy and high-tech applications. Moreover, we distinguish between supply-side and demand-side characteristics. On the supply side, we differentiate between processed and semi-processed products and between products traded in concentrated and diversified markets. On the demand side, we classify minerals based on whether they are used in energy and digital applications or not. Employing a gravity model over the period 1995–2022 and the Poisson Pseudo Maximum Likelihood (PPML) estimator, we account for zero trade flows and heteroskedasticity. Our analysis reveals that political dissimilarity with China and the United States is an important determinant of trade in critical minerals, particularly for semi-processed products, those used in energy and digital transitions, and products with more geographically concentrated markets. At the product level, minerals such as nickel, cobalt, vanadium, molybdenum, copper, and aluminum appear especially sensitive to strategic considerations. Finally, our findings are robust across different model specifications.</div></div>","PeriodicalId":20970,"journal":{"name":"Resources Policy","volume":"109 ","pages":"Article 105701"},"PeriodicalIF":10.2,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144878260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multivariate regression (MVR) mining project cost estimator for future mineral supply scenario modeling 基于多元回归（MVR）的未来矿产供应情景建模采矿项目成本估算

IF 10.2 2区经济学

Resources Policy Pub Date : 2025-08-21 DOI: 10.1016/j.resourpol.2025.105727

Tim M. O'Brien, Elisa Alonso, Dalton M. McCaffrey, John W. Ryter

{"title":"Multivariate regression (MVR) mining project cost estimator for future mineral supply scenario modeling","authors":"Tim M. O'Brien, Elisa Alonso, Dalton M. McCaffrey, John W. Ryter","doi":"10.1016/j.resourpol.2025.105727","DOIUrl":"10.1016/j.resourpol.2025.105727","url":null,"abstract":"<div><div>Growing demand for various communication, transportation and energy technologies will require a wide range of minerals at quantities that are significantly greater than historical levels. To model future mineral supplies to meet this demand, we developed a new, globally representative, multivariate regression-based (MVR) mining project cost model that can be used to estimate capital expenditures (CAPEX) and operational expenses (OPEX) for 28 mineral commodities that cover the agricultural, energy, infrastructure, and manufacturing industries. These equations utilize common mining project parameters and do not require detailed knowledge of a specific project to estimate costs.</div><div>An uneven distribution in reported CAPEX and OPEX data led to the generation of two sets of MVR equations: commodity-specific MVR equations for commodities with a large <em>sample size</em> (e.g., Au, Cu, Zn), and data-aggregated, non-commodity-specific equations for commodities with minimal reported data (e.g., Nb, Ta, and V). Commodity-specific CAPEX and/or OPEX equations were developed for the following 19 minerals: Ag, Au, Co, Cu, Fe, graphite, Li, lanthanides, Mo, Ni, Nb, Pb, phosphate, potash, Pt, Sn, U, W, and Zn, with most equations yielding R<sup>2</sup> > 0.7. Using the data aggregated approach, non-commodity-specific regressions were developed to estimate bauxite, Nb, Ta, ilmenite, rutile, Mn, Pd, Ti, V, and Zr project costs. Furthermore, we demonstrate the diverse utility of our equations through case studies coupled with Net Present Value (NPV) estimates, highlighting (1) the impact of price volatility on fertilizer projects, (2) the dependency of co-production in platinum group metal projects for increasing the added value and viability of the project, and (3) the capability of various copper projects in meeting growing global demand.</div></div>","PeriodicalId":20970,"journal":{"name":"Resources Policy","volume":"109 ","pages":"Article 105727"},"PeriodicalIF":10.2,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144878261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Uncovering direct and indirect causes of coal mine accidents: A novel analysis utilizing social network and Sent-LDA models 揭示煤矿事故的直接和间接原因：一种利用社会网络和send - lda模型的新分析

IF 10.2 2区经济学

Resources Policy Pub Date : 2025-08-21 DOI: 10.1016/j.resourpol.2025.105730

Yangyang Chen , Wenyi Tang , Xiaojie Liu , Yi Shi , Jiannan Zhu

引用次数: 0

Memory, myths and conspiracy theories: The legacy of mine decline for women in the Free State Goldfields, South Africa 记忆、神话和阴谋论：南非自由邦金矿区女性矿山衰落的遗产

IF 10.2 2区经济学

Resources Policy Pub Date : 2025-08-20 DOI: 10.1016/j.resourpol.2025.105725

Kentse Sesele , Lochner Marais

引用次数: 0

Edmonton, a resource city: urban development examined through unrecognized resource legacies 埃德蒙顿，一个资源型城市：通过未被认可的资源遗产考察城市发展

IF 10.2 2区经济学

Resources Policy Pub Date : 2025-08-20 DOI: 10.1016/j.resourpol.2025.105692

Peter Whyte, Kristof Van Assche

{"title":"Edmonton, a resource city: urban development examined through unrecognized resource legacies","authors":"Peter Whyte, Kristof Van Assche","doi":"10.1016/j.resourpol.2025.105692","DOIUrl":"10.1016/j.resourpol.2025.105692","url":null,"abstract":"<div><div>Edmonton, Alberta, is currently associated with oil and gas industries, yet its history as a resource community is in many ways not only obscure but also influential, even key to the understanding of its urban development. Timber harvesting, brick making but most importantly local coal mining powered and structured Edmonton's growth. Several communities were key to this foundation, ultimately becoming hosts for many other city sustaining functions. River flats communities like Riverdale and Cloverdale were vulnerable to floods. Beverly, an official coal mining town had a prolonged history of struggle. McCauley was home to the Federal prison; resident prisoners mined the coal beneath Riverdale. Coal mining in Edmonton was replaced by informal and social housing, waste management, major transportation projects, and finally development of Edmonton's River Valley parks system. Edmonton provides a case study for expanding the resource communities narrative. Key communities in Edmonton's early years show how coal mining influenced landscape, economic shifts, and relationships within a growing city. A combined process of GIS analysis, local media analysis, and literature review provides a framework for understanding how Edmonton, a large northern city initially shared the experiences and difficulties of small resource communities in earlier years of growth and development. Large and diverse cities which seemingly transcended their extractive origin can be analyzed through the lens of resource legacies, which can reveal, as in Edmonton, that largely forgotten histories of vanished resources can mark cities and their planning in profound ways. We therefore speak of opaque resource cities.</div></div>","PeriodicalId":20970,"journal":{"name":"Resources Policy","volume":"109 ","pages":"Article 105692"},"PeriodicalIF":10.2,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144865832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0