Sustainable Production and Consumption最新文献_第8页

Unlocking BECCS viability through monetizing societal benefits by techno-socio-economic assessment 通过技术-社会经济评估将社会效益货币化，解锁BECCS的可行性

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-31 DOI: 10.1016/j.spc.2025.08.016

Alberto Almena , Vahid Ghorbani Pashakolaie , Mariano Martin

Bioenergy with carbon capture and storage (BECCS) is considered a key technology for achieving the net-zero emissions target by simultaneously delivering net-negative emissions and usable energy. However, large-scale deployment remains limited due to its poor investment attractiveness. Traditional Techno-Economic Assessments (TEA), even when accounting for carbon credits revenue, show that BECCS systems are not financially competitive with conventional or renewable energy sources. This study introduces a Techno-Socio-Economic Assessment (TSEA) framework that integrates overlooked societal benefits, such as indirect emission displacement and job creation, by monetising them through the social cost of carbon (SC) and the opportunity cost of labour. A case study evaluates a wheat-straw-fuelled combined heat and power BECCS facility operating under three strategies: electricity and heat cogeneration, carbon credit maximization, and electricity maximization. Conventional TEA results show negative profitability (NPV = −$460 million) and reveal that carbon credit prices must exceed $240/tCO₂ for the levelized cost of electricity to reach parity with renewable energies. Under the TSEA framework, all configurations become profitable with the electricity-maximizing mode reaching an NPV of $2.28 billion. Sensitivity analysis highlights profitability's strong dependence on the assumed social cost of carbon, underscoring the uncertainty and policy sensitivity of BECCS economics. These findings underscore the need to recognize and monetise BECCS's full societal value. Future policies must determine who bears the cost of carbon damages and must establish mechanisms to ensure stakeholders are fairly compensated for the broader social benefits delivered by BECCS, thus fostering investment and enabling real-world deployment of this essential technology.

生物能源与碳捕获和储存（BECCS）被认为是通过同时提供净负排放和可用能源来实现净零排放目标的关键技术。然而，由于其投资吸引力较差，大规模部署仍然有限。传统的技术经济评估（TEA），即使考虑到碳信用收入，也表明BECCS系统在财务上与传统或可再生能源没有竞争力。本研究引入了一个技术-社会经济评估（TSEA）框架，该框架通过碳的社会成本（SC）和劳动力的机会成本将其货币化，从而整合了被忽视的社会效益，如间接排放取代和创造就业机会。一个案例研究评估了一个以小麦秸秆为燃料的热电联产BECCS设施，该设施在三种策略下运行：电和热热电联产、碳信用最大化和电力最大化。传统TEA的结果显示盈利能力为负（NPV = - 4.6亿美元），并表明碳信用价格必须超过240美元/tCO₂，才能使电力成本达到与可再生能源相当的水平。在TSEA框架下，所有配置都是有利可图的，电力最大化模式的净现值达到22.8亿美元。敏感性分析强调了盈利能力对假定碳社会成本的强烈依赖，凸显了BECCS经济学的不确定性和政策敏感性。这些发现强调了认识到BECCS的全部社会价值并将其货币化的必要性。未来的政策必须确定谁来承担碳排放损失的成本，并且必须建立机制，确保利益相关者能够为BECCS带来的更广泛的社会效益获得公平的补偿，从而促进投资并使这项关键技术能够在现实世界中得到应用。

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引用次数: 0

Carbon footprint reduction potential of consumption changes in five European countries in 2015, 2030, and 2050 2015年、2030年和2050年欧洲五国消费变化的碳足迹减少潜力

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-25 DOI: 10.1016/j.spc.2025.08.018

Stephanie Cap , Sinja Li , Arjan de Koning , Antti Karjalainen , Michael Lettenmeier , Luca Coscieme , Arnold Tukker , Laura Scherer

Limiting global warming to 1.5°C requires extensive socioeconomic and technological transformations. With approximately two-thirds of global greenhouse gas emissions linked to household consumption, reducing demand-side emissions through low-carbon lifestyle changes is critical. While major emissions hotspots and high-impact consumption changes are known, a cross-country prospective analysis of their emissions reduction potential has been missing. This study quantifies the avoided greenhouse gas emissions from 47 consumption changes across five diverse European countries. We assess how socioeconomic and technological changes influence emissions reduction potentials by comparing such potentials in a baseline year (2015) with those in 2030 and 2050 under a sustainable development scenario. Our findings highlight that the most effective mitigation options involve reducing conventional vehicle use, decarbonizing household heating, and shifting to predominantly plant-based diets. Though country-specific variation exists, we observed that the emissions reduction potentials of many consumption changes evolve proportionally to technological changes. Behaviors involving direct fossil fuel combustion, such as car travel or fossil-fueled heating, remain largely unabated by technological shifts without lifestyle change, thus increasing in relative mitigation potential. Changes relying on electricity substitution, such as switching to a heat pump, were most dependent on systemic decarbonization. These insights demonstrate which household-level actions consistently offer high emissions mitigation potential and which are more sensitive to broader system changes. Our results provide a clearer understanding of how individual climate change mitigation actions intersect with long-term industrial decarbonization strategies, supporting more targeted policymaking for demand-side climate change mitigation.

将全球变暖限制在1.5°C需要广泛的社会经济和技术变革。由于全球约三分之二的温室气体排放与家庭消费有关，因此通过改变低碳生活方式来减少需求侧排放至关重要。虽然已知主要的排放热点和高影响的消费变化，但缺乏对其减排潜力的跨国前瞻性分析。这项研究量化了五个不同欧洲国家47项消费变化所避免的温室气体排放。通过将基准年（2015年）的减排潜力与可持续发展情景下2030年和2050年的减排潜力进行比较，我们评估了社会经济和技术变化如何影响减排潜力。我们的研究结果强调，最有效的缓解方案包括减少传统车辆的使用，使家庭供暖脱碳，以及转向以植物为主的饮食。尽管存在国别差异，但我们观察到，许多消费变化的减排潜力与技术变化成正比。涉及直接燃烧化石燃料的行为，如汽车旅行或化石燃料加热，在没有改变生活方式的情况下，在很大程度上仍未因技术变化而减少，因此相对缓解潜力增加。依靠电力替代的变化，如改用热泵，最依赖于系统脱碳。这些见解表明，哪些家庭一级的行动始终具有较高的减排潜力，哪些对更广泛的系统变化更敏感。我们的研究结果更清楚地了解了个体气候变化减缓行动与长期工业脱碳战略之间的相互作用，为更有针对性的需求侧气候变化减缓政策制定提供了支持。

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引用次数: 0

Potential for biogenic carbon storage towards a net-zero built environment in Switzerland 生物碳储存在瑞士实现净零建筑环境的潜力

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-25 DOI: 10.1016/j.spc.2025.08.019

Yasmine Dominique Priore , Lucile Schulthess , Sarah Delmenico , Lionel Rinquet , Guillaume Habert , Thomas Jusselme

The built environment is a major contributor to global greenhouse gas (GHG) emissions, posing challenges for achieving net-zero targets by 2050. This study examines the potential of an increased use of biobased materials in the Swiss residential building stock to mitigate emissions while increasing biogenic carbon storage. Using a Python-based building stock model, the study evaluates the effectiveness of increasing the share of biobased materials in both renovations and new constructions under different scenarios compared to climate goals. Results indicate that renovations will become the dominant driver of building stock emissions and biogenic carbon storage potential by 2050. While new construction activities will decline due to demographic trends, renovations will contribute nearly four times more to GHG emissions than new buildings. Nevertheless, new constructions are more effective at storing biogenic carbon, achieving a biogenic-to-emissions ratio of 300 % by 2050, compared to 176 % for renovations. By mid-century, the yearly biogenic carbon storage in buildings could reach 2.5 Mt. CO₂, approaching a balance with yearly GHG embodied emissions. However, even in the most optimistic scenario, increasing biobased material use alone reduces cumulative emissions by only 5–8 % compared to business as usual, underscoring the need for additional emission reduction strategies, including decarbonizing material production and reducing construction activities. The long-term analysis reveals that biogenic carbon storage potential is constrained by demolition rates (assuming full re-emission at the end of life), with a higher demolition rate accelerating carbon turnover and limiting storage capacity. A cumulative maximum biogenic carbon stock of 300–400 Mt. CO₂ is projected in the long-term, surpassing Switzerland's expected cumulative net emissions removals by 2050 by 6 times. This study highlights the built environment's potential as a long-term carbon reservoir and emphasizes the necessity of targeted renovation strategies, regulatory policies, and material production improvements to achieve climate goals effectively.

建筑环境是全球温室气体（GHG）排放的主要来源，对到2050年实现净零排放目标提出了挑战。本研究探讨了在瑞士住宅建筑存量中增加使用生物基材料的潜力，以减少排放，同时增加生物碳储存。使用基于python的建筑存量模型，该研究评估了与气候目标相比，在不同情景下，在翻新和新建建筑中增加生物基材料份额的有效性。结果表明，到2050年，改造将成为建筑存量排放和生物碳储存潜力的主要驱动力。虽然新建筑活动将因人口趋势而减少，但翻新建筑的温室气体排放量将是新建建筑的近四倍。然而，新建筑在储存生物碳方面更有效，到2050年，生物碳排放比将达到300%，而翻新建筑的生物碳排放比为176%。到本世纪中叶，建筑物中每年的生物碳储量可能达到250万吨二氧化碳，接近于每年温室气体排放量的平衡。然而，即使在最乐观的情况下，仅增加生物基材料的使用与往常相比，也只能减少5 - 8%的累积排放量，这强调了需要采取额外的减排战略，包括使材料生产脱碳和减少建筑活动。长期分析表明，生物源碳储存潜力受到拆除率（假设在生命结束时完全再排放）的限制，较高的拆除率加速了碳周转，限制了碳储存能力。预计从长期来看，累积最大生物源碳储量为300-400 Mt. CO₂，到2050年将超过瑞士预计的累积净排放量的6倍。本研究强调了建筑环境作为长期碳库的潜力，并强调了有针对性的改造战略、监管政策和材料生产改进的必要性，以有效实现气候目标。

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引用次数: 0

Advancing metrics for animal welfare and antibiotic use in sustainability assessments of diets 在饮食可持续性评估中推进动物福利和抗生素使用指标

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-25 DOI: 10.1016/j.spc.2025.08.020

Lotta Rydhmer , Elin Röös

Assessment of the sustainability of diets typically includes the diet's impact on the environment, including effect on greenhouse gas emissions, and the use of land and water. However, there are other crucial sustainability aspects including animal welfare and antibiotic use that sustainability assessments usually neglect due to methodological challenges and lack of available data. This study contributes to the improvement of sustainability assessments of food systems by advancing methods to include animal welfare and antibiotic use. The proposed animal welfare indices reflect the number of animals affected per kilogram of animal product, the animals' cognitive ability to experience negative effects, and the quality of the production system, including disease frequency and space limitations. The proposed antibiotic use indicator acts as a proxy for the risk of bacteria developing resistance to antibiotics that threatens health of humans and animals. It was developed based on national sales data, adjusted for species-specific differences. The animal welfare indices and the antibiotic use indicator were applied to a range of animal products commonly consumed in a set of European countries, revealing substantial variations in animal welfare loss and antibiotic use across species and production systems. For example, rabbit and chicken production showed high welfare loss per kilogram of meat due to the number of animals affected and the relatively poor conditions in intensive livestock systems. Meat from cattle and wild-caught species had lower welfare loss (i.e. favourable) per kilogram, attributed to the larger body mass of these animals and less suffering in production. The methodologies developed here offer a much needed tool for evaluating trade-offs between animal welfare, antibiotic use, and environmental sustainability in food production.

对饮食可持续性的评估通常包括饮食对环境的影响，包括对温室气体排放的影响，以及土地和水的利用。然而，还有其他关键的可持续性方面，包括动物福利和抗生素的使用，可持续性评估通常由于方法上的挑战和缺乏可用数据而被忽视。本研究通过推进包括动物福利和抗生素使用在内的方法，有助于改善粮食系统的可持续性评估。拟议的动物福利指数反映了每公斤动物产品受影响的动物数量，动物对负面影响的认知能力，以及生产系统的质量，包括疾病频率和空间限制。拟议的抗生素使用指标可作为细菌对抗生素产生耐药性的风险指标，从而威胁人类和动物的健康。它是根据国家销售数据制定的，并根据特定物种的差异进行了调整。动物福利指数和抗生素使用指标应用于一系列欧洲国家普遍消费的动物产品，揭示了动物福利损失和抗生素使用在物种和生产系统之间的巨大差异。例如，由于受影响的动物数量和集约化畜牧系统中相对较差的条件，兔肉和鸡肉生产显示出每公斤肉的高福利损失。牛和野生捕获物种的肉每公斤的福利损失（即有利）较低，原因是这些动物的体重较大，生产过程中遭受的痛苦较少。这里开发的方法为评估食品生产中动物福利、抗生素使用和环境可持续性之间的权衡提供了一个急需的工具。

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引用次数: 0

Carbon footprint of China's healthcare system from a global perspective: A multi-dimensional hotspot assessment 全球视角下的中国医疗体系碳足迹：多维度热点评估

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-24 DOI: 10.1016/j.spc.2025.08.017

Han Zhao , Weiyi Liao , Lin Fu , Mengzhen Zhao , Shangchen Zhang , Jiale Wu , Peipei Chai , Wenjia Cai

Healthcare systems are energy-intensive and contribute significantly to carbon emissions, making each country's understanding of its own emissions crucial for advancing climate and health agendas. However, existing estimates of China vary widely due to inconsistent boundaries, outdated data, and limited subnational resolution. This study developed a top-down framework using an environmentally extended multi-regional input–output model to assess China's healthcare-related carbon footprint from 2010 to 2019. It was also the first to compare different accounting scopes and methods, and identify multidimensional hotspots by region and disease. Our results show that China's healthcare carbon footprint reached 638 Mt. CO₂e in 2019, with the domestic share rising to 4.3 % of the nation's total carbon emissions. Electricity was the dominant source of healthcare carbon footprints across the supply chain. Geographically, Scope 1 and 2 emissions increased most in the Northwest (+33 %) and Southwest (+30 %), while Scope 3 increases came mainly from Central Coastal and Central provinces. Healthcare carbon footprint also varied by disease type, with cerebral infarction exhibiting the highest total footprint among major inpatient diseases (∼8 Mt. CO₂e), while coronary artery bypass grafting had the highest per-case footprint (∼11 t CO₂e) in 2017. These results point to the need for targeted measures that are region- and disease-specific, to promote a low-carbon transition and support the high-quality development of China's healthcare system.

卫生保健系统是能源密集型的，对碳排放有很大贡献，因此每个国家了解自己的排放量对于推进气候和卫生议程至关重要。然而，由于不一致的边界、过时的数据和有限的地方决议，现有的对中国的估计差异很大。本研究利用环境扩展的多区域投入产出模型构建了一个自上而下的框架，对2010 - 2019年中国医疗保健相关碳足迹进行了评估。它还首次比较了不同的核算范围和方法，并按地区和疾病确定了多维热点。我们的研究结果显示，2019年中国医疗行业的碳足迹达到6.38亿吨二氧化碳排放量，其中国内碳排放量占全国碳排放总量的比例上升至4.3%。电力是整个供应链中医疗保健碳足迹的主要来源。从地理上看，范围1和2的排放量在西北部（+ 33%）和西南部（+ 30%）增长最多，而范围3的增长主要来自中部沿海和中部省份。医疗保健碳足迹也因疾病类型而异，脑梗死在主要住院疾病中表现出最高的总足迹（~ 8 Mt. CO₂e），而冠状动脉搭桥术在2017年的每例足迹最高（~ 11 Mt. CO₂e）。这些结果表明，需要采取针对不同地区和疾病的针对性措施，以促进低碳转型，支持中国医疗体系的高质量发展。

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引用次数: 0

Evaluating the environmental impacts of self-sustaining batteries for electric vehicles: Influence of user charging behaviour 评估电动汽车自持电池对环境的影响：用户充电行为的影响

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-24 DOI: 10.1016/j.spc.2025.08.013

Lea D'amore , Maeva Lavigne Philippot , Maarten Messagie

Optimizing charging time has become essential with the increasing electrification of the vehicle fleet. However, fast charging can accelerate battery degradation, reducing the battery's lifespan. To address this challenge, batteries and cooling systems are being developed with enhanced capacities to support fast charging. This paper evaluates the environmental impacts of such improved systems using a comparative cradle-to-grave life cycle assessment. The performance of the enhanced system is compared to that of a reference system currently available on the market, under two scenarios: an overnight charging scenario and a fast-charging scenario. An additional scenario is modeled to reflect a limit on the number of fast charges per month to avoid battery replacement. While most existing studies that include battery degradation look at fast-charging effects, they often do not define scenarios based on individual user charging choices and therefore, potential switch between fast and slow charging. In this study, the functional unit is 1 km driven, and the need for battery replacement is calculated using results from ageing tests at the cell level. A sensitivity analysis is also conducted to evaluate the influence of a more decarbonized electricity mix. In the overnight charging scenario, for Ecotoxicity Freshwater, the reference system performs better. Under fast-charging scenario, the improved system outperforms the other across all impact categories. With a decarbonized electricity mix, the reference system performs better across more categories in the overnight charging scenario. Overall, the study demonstrates that the comparative environmental results of the two systems depend strongly on the charging scenario.

随着汽车电气化程度的提高，优化充电时间变得至关重要。然而，快速充电会加速电池退化，缩短电池寿命。为了应对这一挑战，电池和冷却系统正在开发增强容量，以支持快速充电。本文使用比较摇篮到坟墓的生命周期评估来评估这种改进系统的环境影响。在夜间充电和快速充电两种情况下，将增强型系统的性能与市场上现有的参考系统进行了比较。另外还模拟了一个场景，以反映每月快速充电次数的限制，避免更换电池。虽然大多数现有的研究都着眼于快速充电的影响，但它们通常没有根据个人用户的充电选择来定义场景，因此也就没有考虑到快速充电和慢速充电之间的潜在切换。在本研究中，功能单元行驶1公里，使用电池级老化测试的结果计算电池更换需求。还进行了敏感性分析，以评估更低碳的电力组合的影响。在夜间充电情况下，对于生态毒性淡水，参考系统表现更好。在快速充电场景下，改进后的系统在所有影响类别中都优于其他系统。使用脱碳电力组合，参考系统在更多类别的夜间充电场景中表现更好。总体而言，研究表明，两种系统的比较环境结果在很大程度上取决于收费方案。

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引用次数: 0

Understanding the effects of mining and processing parameters on Life Cycle Assessment of Greenbushes Spodumene production 开采和加工参数对绿灌丛锂辉石生产生命周期评价的影响

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-24 DOI: 10.1016/j.spc.2025.08.014

Shayan Khakmardan , Robert H. Crawford , Damien Giurco , Wen Li

The rapid transition to clean energy has intensified demand for lithium, a critical element for battery production, yet lithium extraction imposes substantial environmental burdens. While the Life Cycle Assessment (LCA) provides a snapshot of environmental impacts, it does not account for dynamic changes in mining and processing operations, such as declining ore grade. This study conducts comprehensive LCAs of Spodumene ore and concentrate production from 2009 to 2023 at the Greenbushes project, empirically analysing how variable parameters influence environmental impacts. Regression analysis identifies the waste-to-ore ratio as the most significant factor affecting most of the mining-related impacts, while ore grade and yield play a dominant role in processing operations for most of the impact categories. Consequently, the global warming potential of producing Spodumene concentrate increased by almost 42.7 % between 2011 and 2023. Moreover, electricity and grinding media consistently contributed the most to the carbon footprint throughout the study period, though their combined share declined from 81.1 % to 57.1 %, whereas diesel consumption rose from 3 % to nearly 20.1 %, mainly due to site expansion.

向清洁能源的快速转型增加了对锂的需求，锂是电池生产的关键元素，但锂的开采带来了巨大的环境负担。虽然生命周期评估（LCA）提供了环境影响的概览，但它没有考虑采矿和加工作业的动态变化，例如矿石品位下降。本研究对Greenbushes项目2009 - 2023年锂辉石矿石和精矿生产进行了综合LCAs，实证分析了变量参数对环境影响的影响。回归分析表明，废矿比是影响大多数采矿相关影响的最重要因素，而矿石品位和产量在大多数影响类别的处理作业中起主导作用。因此，2011年至2023年间，锂辉石精矿生产的全球变暖潜势增加了近42.7%。此外，在整个研究期间，电力和研磨介质对碳足迹的贡献一直最大，尽管它们的总份额从81.1%下降到57.1%，而柴油消耗从3%上升到近20.1%，主要是由于场地扩张。

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引用次数: 0

Towards comparable life cycle assessments: Remodeling-based harmonization of polylactic acid waste depolymerization studies 迈向可比生命周期评估：基于重构的聚乳酸废弃物解聚协调研究

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-22 DOI: 10.1016/j.spc.2025.08.015

Nil Güreli , Jörn-Christian Meyer , Grit Walther

As the use of polylactic acid (PLA) bioplastics grows, sustainable waste management options such as depolymerization become increasingly important. Evaluating its environmental impact relies on life cycle assessment (LCA), but differences in methodological choices (e.g., LCIA method), product system characteristics (e.g., geographical scope), and modeling environment (e.g., software) often lead to incomparable results. This study examined how such variations affect LCA results for PLA depolymerization through a two-stage approach, consisting of (i) a comparative assessment of all 9 life cycle inventory (LCI) datasets identified in the literature (from 6 studies up to December 2023), which revealed key inconsistencies such as insufficient process detail and data gaps on additives and catalysts, and (ii) a remodeling-based harmonization of the studies using consistent LCA parameters, addressing often overlooked factors including database choice, geographic location, and life cycle impact assessment (LCIA) method. The harmonized results show that the choice of LCI database significantly affects outcomes, especially regarding substitution products. Geographic differences related to energy mix also have notable impacts, while the LCIA method choice has minimal effect. The harmonized global warming potential (GWP) of PLA depolymerization ranges from −2869 to −1378 kg CO₂-eq per megagram (Mg, 1000 kg) of PLA waste. This remodeling-based harmonization can be applied across different fields to improve the consistency and comparability of LCA studies, enabling assessments that can reflect the actual performance of different product systems. The findings highlight the need for transparency in LCA assumptions; therefore, we provide recommendations to improve the reliability and reproducibility of future studies.

随着聚乳酸（PLA）生物塑料的使用增长，诸如解聚等可持续废物管理选择变得越来越重要。评估其环境影响依赖于生命周期评估（LCA），但方法选择（如LCIA方法）、产品系统特征（如地理范围）和建模环境（如软件）的差异往往导致无法比较的结果。本研究通过两阶段方法考察了这些变化如何影响PLA解聚的LCA结果，包括(i)对文献中确定的所有9个生命周期清单（LCI）数据集进行比较评估（从6项研究到2023年12月），揭示了关键的不一致性，例如过程细节不足和添加剂和催化剂的数据缺口；（ii）使用一致的LCA参数对研究进行基于重构的协调。解决经常被忽视的因素，包括数据库选择、地理位置和生命周期影响评估（LCIA）方法。协调的结果表明，LCI数据库的选择显著影响结果，特别是在替代产品方面。与能源结构相关的地理差异也有显著的影响，而LCIA方法选择的影响最小。聚乳酸解聚的协调全球变暖潜势（GWP）范围为- 2869至- 1378 kg CO₂-eq / megg （Mg, 1000 kg）聚乳酸废物。这种基于重构的协调可以应用于不同的领域，以提高LCA研究的一致性和可比性，从而使评估能够反映不同产品系统的实际性能。研究结果强调了LCA假设需要透明度；因此，我们提出建议，以提高未来研究的可靠性和可重复性。

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引用次数: 0

A knowledge graph approach to global nickel mining operations: Patterns and geopolitical insights 全球镍矿开采业务的知识图谱方法：模式和地缘政治见解

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-21 DOI: 10.1016/j.spc.2025.08.012

Zipeng Lin , Peng Wang , Linbin Tang , Francesca Larosa , Yongguang Zhu , Paul Ekins , Wei-Qiang Chen

The global energy transition has intensified demand for critical metals like nickel, placing new emphasis on the need for responsible governance and resilient global mineral supply systems. However, current production patterns and ownership structures pose geopolitical challenges to inclusive and transparent resource governance. This study introduces a knowledge graph-based analytical framework to reassess global nickel mining operations, focusing on three interconnected dimensions: (1) resource endowment, (2) investment influence, and (3) trade centrality. By integrating multi-source, heterogeneous datasets, the framework quantifies and visualizes the geopolitical landscape of global nickel operations. Key insights include: (1) the “nickel triangle”—Indonesia, the Philippines, Papua New Guinea, New Caledonia, and Australia—as a critical hub, underscoring supply concentration and geopolitical risks; (2) developed nations like Switzerland (investment score: 0.69), the UK (0.58), and Canada (0.56) as influential players through overseas investments, reflecting capital-driven resource control strategies; and (3) Indonesia (influence score: 1.0), Brazil (0.95), and Australia (0.79) as dominant actors shaping global primary nickel supply chains. These findings highlight the potential of knowledge graph-based frameworks to dynamically monitor and analyze the geopolitical roles and concerns of nations in mineral resource management. This tool provides policymakers with insights, enabling them to develop strategies that address geopolitical complexities and promote responsible resource governance.

全球能源转型加剧了对镍等关键金属的需求，这使得对负责任的治理和有弹性的全球矿产供应系统的需求成为新的重点。然而，当前的生产模式和所有权结构对包容性和透明度的资源治理构成了地缘政治挑战。本研究引入了一个基于知识图的分析框架来重新评估全球镍矿开采业务，重点关注三个相互关联的维度：(1)资源禀赋，(2)投资影响，(3)贸易中心性。通过整合多源、异构数据集，该框架量化并可视化了全球镍业务的地缘政治格局。主要观点包括：(1)“镍三角”——印度尼西亚、菲律宾、巴布亚新几内亚、新喀里多尼亚和澳大利亚——作为一个重要的中心，突出了供应集中和地缘政治风险；(2)瑞士（投资得分：0.69）、英国（0.58）、加拿大（0.56）等发达国家通过海外投资成为有影响力的参与者，体现了资本驱动的资源控制战略；(3)印度尼西亚（影响力得分：1.0）、巴西（0.95）和澳大利亚（0.79）是塑造全球初级镍供应链的主要参与者。这些发现突出了基于知识图的框架在动态监测和分析各国在矿产资源管理中的地缘政治作用和关切方面的潜力。该工具为政策制定者提供了见解，使他们能够制定应对地缘政治复杂性和促进负责任的资源治理的战略。

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引用次数: 0

Navigating the methanol industry paradox: Environmental gains versus economic realities in green methanol adoption 驾驭甲醇工业悖论：绿色甲醇采用中的环境收益与经济现实

IF 9.6 1区环境科学与生态学 Q1 ENVIRONMENTAL STUDIES

Sustainable Production and Consumption

Pub Date : 2025-08-17 DOI: 10.1016/j.spc.2025.08.011

Xiu Gu , Chengjiang Li , Fengqi You , Quande Qin , Lu Sun , Wenbo Li , Jing Yang , Liang Wang , Wei Zhang

The global urgency to decarbonize chemical and transportation sectors has positioned green methanol as a promising alternative to conventional fossil-based production. However, the complex interplay between environmental benefits and economic viability remains poorly understood. Here, this study developed an integrated Life Cycle Assessment-System Dynamics framework to evaluate the transition pathways of the methanol industry. Our analysis reveals a striking paradox: while green methanol reduces carbon emissions by 80 % in formaldehyde, production costs remain 46 % higher, which creates significant market resistance. This economic barrier leads to divergent adoption patterns, with transportation applications showing accelerated uptake while chemical production maintains traditional pathways. The model predicts that this bifurcated transition could accelerate industry decarbonization by allowing targeted investment. These findings provide insights for policymakers and industry stakeholders, suggesting that a segmented rather than uniform approach to green methanol adoption might be effective for achieving climate goals.

全球迫切需要使化工和运输部门脱碳，这使得绿色甲醇成为传统化石燃料生产的一种有前途的替代品。然而，人们对环境效益和经济可行性之间复杂的相互作用仍然知之甚少。在这里，本研究开发了一个集成的生命周期评估-系统动力学框架来评估甲醇工业的转型途径。我们的分析揭示了一个惊人的悖论：虽然绿色甲醇在甲醛中减少了80%的碳排放量，但生产成本仍然高出46%，这造成了巨大的市场阻力。这一经济障碍导致不同的采用模式，运输应用显示加速吸收，而化学生产保持传统途径。该模型预测，这种分岔转型可以通过允许有针对性的投资来加速工业脱碳。这些发现为政策制定者和行业利益相关者提供了见解，表明采用分段而非统一的绿色甲醇方法可能对实现气候目标有效。

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引用次数: 0