Sustainable Production and Consumption最新文献_第10页

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 : 2025-10-01 Epub 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

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 : 2025-10-01 Epub 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

Circular economy models of sugarcane biorefinery towards carbon neutrality and environmental sustainability 面向碳中和和环境可持续性的甘蔗生物炼制循环经济模式

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

Sustainable Production and Consumption

Pub Date : 2025-10-01 Epub Date: 2025-07-24 DOI: 10.1016/j.spc.2025.07.008

Shwe Yie Lin , Nicholas M. Holden , Romanee Thongdara , Thapat Silalertruksa , Shabbir H. Gheewala , Trakarn Prapaspongsa

Sugarcane biorefineries convert sugarcane waste into bioproducts, requiring assessment for environmentally viable processing. This study compared the life cycle environmental impacts, environmental damage costs, and circularity of sugarcane biorefinery scenarios: a base case with pre-harvest cane trash burning and sugar and ethanol production; a modified one with improved energy efficiency; and three bioproduct scenarios producing bagasse-based biobutanol or biochar for bioenergy scenario, lactic or acetic acid for biochemicals, and cane trash-derived cellulose nanofibers or soil conditioner for biomaterials. Bioproduct scenarios assumed green cane harvesting. Life cycle assessment followed a cradle-to-gate scope, with a functional unit of 1 tonne of cane processed (t_c). Damage to human health ranged from 7.72 × 10⁻⁴ to 2.85 × 10⁻³ disability-adjusted life years/t_c; ecosystem from 4.85 × 10⁻⁶ to 9.15 × 10⁻⁶ species.year/t_c; resource scarcity from 10 to 60 United States dollar 2013/t_c; total damage costs from 2,100 to 5,410 Thai Baht/t_c, and circularity from 0.44 to 0.52. Bioproduct scenarios, except cellulose nanofibers, had lower environmental damage costs than the base case. Biorefinery circularity aligned closely with the highest-value product in each scenario. Biochemical (Lactic acid) was the best overall, with the lowest environmental damage cost and resource scarcity damage, relatively low human health and ecosystem damage, and a high circularity score of 0.5. Biomaterial (Cellulose nanofibers) was the worst due to its highest damage cost from the highest fossil resource scarcity, accounting for over 95 % of resources scarcity damage in all scenarios, and high-water consumption, despite minimum human health damage from the lowest fine particulate matter formation, leading contributor to human health damage mainly from cane burning and biomass electricity, and a high circularity of 0.52. The modified base case was slightly better than the base case across all metrics. Bioproduct scenarios increased circularity; however, higher circularity did not always correlate better environmental performance.

甘蔗生物精炼厂将甘蔗废料转化为生物产品，需要对环境可行的加工进行评估。本研究比较了甘蔗生物炼制的生命周期环境影响、环境破坏成本和循环度：一个基本情况是收获前的甘蔗垃圾燃烧和糖和乙醇生产；改进型能源效率提高的改进型；还有三个生物产品方案，为生物能源方案生产甘蔗渣基生物丁醇或生物炭，为生物化学方案生产乳酸或乙酸，为生物材料生产甘蔗垃圾衍生的纤维素纳米纤维或土壤调节剂。生物产品假设是绿色甘蔗收割。生命周期评估遵循从摇篮到闸门的范围，以1吨甘蔗加工（tc）为功能单位。对人体健康的损害范围为7.72 × 10−4至2.85 × 10−3残疾调整生命年/tc；生态系统从4.85 × 10−6到9.15 × 10−6 species.year/tc；资源稀缺性从10美元到60美元2013/tc；总损害费用为2,100至5,410泰铢/tc，循环费用为0.44至0.52。除纤维素纳米纤维外，生物产品方案的环境破坏成本低于基本方案。在每种情况下，生物精炼循环与最高价值产品密切相关。生物化学（乳酸）整体效果最好，环境破坏成本和资源稀缺性损害最低，人体健康和生态系统损害相对较低，循环度评分较高，为0.5。生物材料（纤维素纳米纤维）是最糟糕的，因为化石资源最稀缺造成的损害成本最高，占所有情景中资源稀缺损害的95%以上；尽管细颗粒物形成对人类健康的损害最小，但耗水量高，主要来自甘蔗燃烧和生物质发电，对人类健康造成的损害最大，循环度高，为0.52。修改后的基本情况略好于所有指标的基本情况。生物产品情景增加循环；然而，更高的循环度并不总是与更好的环保性能相关。

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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 : 2025-10-01 Epub 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

Peaking in pieces? Decoding the carbon peak dynamics of Chinese cities 支离破碎？解读中国城市碳峰值动态

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

Sustainable Production and Consumption

Pub Date : 2025-10-01 Epub Date: 2025-09-07 DOI: 10.1016/j.spc.2025.09.001

He Huang , Jinlei Ma , Hongyu Liu , Jingke Hong

Understanding the diverse carbon peaking pathways of different cities are critically important for achieving China's dual carbon goals. To address data limitations, this study introduces a novel Data Alignment Technique to compile the most comprehensive historical carbon emission dataset of 329 Chinese cities from 1992 to 2023. The dynamics of carbon peak—including trajectories, timelines, and driving factors are systematically analysed by integrating machine learning techniques and econometrics models. The findings include: (1) The carbon peaking process at the city level in China was fragmented and asynchronous, as evidenced by the distribution of 213 Non-Peak Cities (64.74 %), 84 Pre-Peak Cities (25.53 %), and 32 Post-Peak Cities (9.73 %). (2) Peak Cities have formed nine distinct carbon peak clusters across the country, primarily driven by the spillover effects of technological innovation and regulatory policies. (3) Emissions in Peak Cities were reduced in stages: first, by energy structure optimization (1995–1999), thereafter, by technological innovation (2005–2019), and recently, by policy regulation and industrial restructuring (2020−2022). (4) The marginal effects of green technology, policy regulation and industrial structure adjustment on carbon exhibited the greatest variability among Non-Peak Cities, with only half of them achieving emission reduction benefits from these measures. These findings underscore the urgent need for coordinated, yet differentiated, climate efforts, particularly to facilitate technological diffusion and enhance policy synergy within the city agglomerations.

了解不同城市不同的碳峰值路径对于实现中国的双碳目标至关重要。为了解决数据的局限性，本研究引入了一种新颖的数据对齐技术，编制了1992 - 2023年中国329个城市最全面的历史碳排放数据集。通过整合机器学习技术和计量经济学模型，系统地分析了碳峰值的动态，包括轨迹、时间线和驱动因素。结果表明：(1)中国城市碳峰值过程具有碎片化和非同步的特征，非峰值城市213个（64.74%），峰值前城市84个（25.53%），峰值后城市32个（9.73%）。②峰值城市在全国范围内形成了9个不同的碳峰值集群，其主要驱动因素是技术创新和监管政策的溢出效应。③高峰城市的减排分阶段进行：首先是能源结构优化（1995-1999年），其次是技术创新（2005-2019年），最近是政策调控和产业结构调整（2020 - 2022年）。(4)绿色技术、政策调控和产业结构调整对碳排放的边际效应在非峰值城市中表现出最大的变异性，只有一半的城市从这些措施中获得了减排效益。这些发现强调了迫切需要协调但有区别的气候努力，特别是促进技术扩散和加强城市群内的政策协同作用。

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引用次数: 0

Assessing the circularity potential of textile flows for future markets in Denmark: A study of textile anatomy 评估丹麦未来市场纺织品流动的循环潜力：纺织品解剖学研究

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

Sustainable Production and Consumption

Pub Date : 2025-10-01 Epub Date: 2025-08-06 DOI: 10.1016/j.spc.2025.08.002

Heather Margaret Logan , Valentina Rossi , Kamilla Kastrup Hansen , Maggie Ziggie Søndergaard , Anders Damgaard

There is an urgent need to reduce the production and consumption of garments to curb the environmental emissions from the waste generated after their lifecycles. Nonetheless, even if drastic steps are taken today to reduce the production of textiles, the textiles already in circulation eventually need to be disposed of or recycled. To capture these garments and increase the quantity of textile available for recycling, the European Union (EU) has mandated the separate collection of the textile fraction across member states from 2025. However, collecting textiles for recycling does not guarantee that the collected textiles are recyclable. This study explores the recyclability of textiles by analysing the anatomy of textiles (linings, disruptors, adornments, and fibre blends) in Denmark and applies these findings to forecast the material available to different recycling routes in 2025. This study finds that in Denmark, after initial collection and sorting, textile complexity will likely result in the incineration of 36 % of textiles sent to recycling streams, 53 % will require disruptor removal, and 11 % will be available to different recycling routes. When the recycling capacity for high-quality recycling is considered, only a minor part (<2 %) of textiles in the Danish market can result in high-quality fibre-to-fibre recycling. These results emphasize the importance of considering textile anatomy both when designing textiles and determining recycling pathways. Moreover, our findings underscore that the Circular Economy (CE) transition cannot rely on recycling alone; instead, it must invest in avoidance and reuse approaches in addition to improved sorting and pretreatment facilities within Europe to best utilize the textiles currently in circulation.

迫切需要减少服装的生产和消费，以遏制其生命周期后产生的废物对环境的排放。然而，即使今天采取了严厉的措施来减少纺织品的生产，已经在流通的纺织品最终也需要被处理或回收。为了捕获这些服装并增加可回收纺织品的数量，欧盟（EU）已强制要求从2025年起各成员国对纺织品部分进行单独收集。然而，收集纺织品循环再造并不能保证所收集的纺织品是可循环再造的。本研究通过分析丹麦纺织品（衬里、干扰物、装饰品和纤维混合物）的解剖结构，探讨了纺织品的可回收性，并将这些发现应用于预测2025年不同回收路线的材料。这项研究发现，在丹麦，在最初的收集和分类之后，纺织品的复杂性可能导致36%的纺织品被焚烧，53%的纺织品需要去除干扰物，11%的纺织品将用于不同的回收路线。当考虑到高质量回收的回收能力时，丹麦市场上只有一小部分纺织品（< 2%）可以实现高质量的纤维对纤维回收。这些结果强调了在设计纺织品和确定回收途径时考虑纺织品解剖学的重要性。此外，我们的研究结果强调，循环经济（CE）转型不能仅仅依靠回收；相反，它必须投资于避免和再利用的方法，以及改善欧洲境内的分类和预处理设施，以最好地利用目前流通的纺织品。

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引用次数: 0

Is that the way the cookie crumbles? Variation in household food waste by socio-demographics and food management behaviours 饼干就是这样碎的吗？社会人口统计和食物管理行为对家庭食物浪费的影响

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

Sustainable Production and Consumption

Pub Date : 2025-10-01 Epub Date: 2025-08-05 DOI: 10.1016/j.spc.2025.08.003

Gülbanu Kaptan , Tom Quested , Chuyao Kuang , Marcel Torode

Households produce more food waste than the rest of the supply chain combined in most countries. Identifying which households contribute most to food waste is important for designing and implementing effective interventions to reduce food waste. However, previous findings on the impact of socio-demographic characteristics and food management behaviours on household food waste are inconsistent and often rely on self-reported food waste data. In this study, we examined the association of socio-demographics and food management behaviours with directly measured food waste in 1783 UK households using waste compositional analysis. Our findings indicate that household size, age, and education significantly influence food waste levels, with individuals holding a university degree wasting less food, contrary to previous studies that analysed self-reported food waste levels. Additionally, the behaviours of purchasing the right amount of food, reusing leftovers, and defrosting items from the freezer are found to mediate the relationship between age and food waste. While purchasing the right amount of food and reusing leftovers are associated with lower food waste, households better at defrosting tend to waste more food, an intriguing and previously unreported finding. Our results suggest that future behavioural interventions should focus on these significant socio-demographic factors and food management behaviours to reduce household food waste.

在大多数国家，家庭产生的食物浪费比供应链上其他环节的总和还要多。确定哪些家庭造成的食物浪费最多，对于设计和实施减少食物浪费的有效干预措施非常重要。然而，以往关于社会人口特征和食物管理行为对家庭食物浪费影响的研究结果并不一致，而且往往依赖于自我报告的食物浪费数据。在这项研究中，我们使用废物成分分析检查了1783个英国家庭的社会人口统计学和食物管理行为与直接测量食物浪费的关系。我们的研究结果表明，家庭规模、年龄和教育程度对食物浪费水平有显著影响，拥有大学学位的人浪费的食物较少，这与之前分析自我报告的食物浪费水平的研究相反。此外，购买适量食物、重复利用剩饭剩菜和从冰箱中解冻食物的行为可以调解年龄与食物浪费之间的关系。虽然购买适量的食物和重复利用剩饭剩菜与减少食物浪费有关，但善于解冻的家庭往往浪费更多的食物，这是一个有趣的、以前未被报道过的发现。我们的研究结果表明，未来的行为干预应关注这些重要的社会人口因素和食物管理行为，以减少家庭食物浪费。

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引用次数: 0

Environmental trade-offs of EV battery end-of-life options in Thailand: A life cycle assessment with sensitivity to electricity mix and battery degradation 泰国电动汽车电池寿命终止选择的环境权衡：对电力组合和电池退化敏感的生命周期评估

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

Sustainable Production and Consumption

Pub Date : 2025-10-01 Epub Date: 2025-08-07 DOI: 10.1016/j.spc.2025.08.007

Sakraan Sitcharangsie , Suwit Paengkanya , Seksan Papong

As electric vehicle (EV) adoption accelerates, understanding the environmental impacts of EV batteries—particularly at their end-of-life (EOL)—is essential. This study presents a comprehensive life cycle assessment (LCA) comparing two EOL strategies: (1) immediate recycling and (2) repurposing for an additional ten years prior to recycling. The analysis covers the entire battery life cycle, using real-world load profiles from a Thai fruit export community and projected electricity mixes under three national decarbonization pathways. Environmental performance is assessed across four impact categories: global warming potential, freshwater ecotoxicity, human non-carcinogenic toxicity, and mineral resource scarcity. Results highlight that the battery production and primary use phases contribute most to environmental impacts. However, second-life use can significantly offset emissions, especially in carbon-intensive grid scenarios. In the second-use phase, sensitivity analysis showed that variations in capacity degradation and usable cell rates did not affect the total energy savings or environmental outcomes when the lost capacity was compensated by additional repurposed batteries. Among all scenarios, repurposing batteries before recycling under “30% reduction in carbon intensity by 2030” policy achieved the highest overall sustainability score, offering a balanced reduction across all impact categories. Expert-weighted impact factors further enhance the robustness of the assessment. This study offers actionable insights for policymakers and stakeholders, supporting circular economy strategies and reinforcing the role of second-life applications in Thailand's low-carbon transition.

随着电动汽车（EV）普及的加速，了解电动汽车电池对环境的影响——尤其是在其使用寿命结束（EOL）时——至关重要。本研究提出了一种综合生命周期评估（LCA），比较了两种EOL策略：(1)立即回收和(2)在回收前再使用10年。该分析涵盖了整个电池生命周期，使用了泰国水果出口社区的实际负载概况和三种国家脱碳途径下的预计电力组合。环境绩效是根据四个影响类别进行评估的：全球变暖潜力、淡水生态毒性、人类非致癌毒性和矿产资源稀缺。结果表明，电池生产和初级使用阶段对环境的影响最大。然而，二次使用可以显著抵消排放，特别是在碳密集型电网场景中。在二次使用阶段，敏感性分析表明，当损失的容量被额外的重新利用的电池补偿时，容量退化和可用电池率的变化不会影响总节能或环境结果。在所有方案中，根据“到2030年碳强度降低30%”的政策，在回收之前对电池进行再利用，获得了最高的整体可持续性得分，在所有影响类别中提供了平衡的减排。专家加权影响因子进一步增强了评估的稳健性。本研究为政策制定者和利益相关者提供了可操作的见解，支持循环经济战略，加强二次生命应用在泰国低碳转型中的作用。

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引用次数: 0

Can hydrogen-powered air travel grow within the planetary limits? 氢动力航空旅行能在地球极限内发展吗？

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

Sustainable Production and Consumption

Pub Date : 2025-10-01 Epub Date: 2025-08-10 DOI: 10.1016/j.spc.2025.08.009

Yat Yin Lai , Alexis Laurent

Air travel demand is rising rapidly and the aviation sector is relying on technology to decouple environmental impacts from its growth. Using Sweden as a case study, we assessed the absolute environmental sustainability of medium-distance air travel in 2050, positioning the aviation sector's environmental impacts in relation to the planetary limits. We employed a novel framework that integrates prospective life cycle assessment and absolute environmental sustainability assessment methodologies. Our findings suggest that projected medium-distance air travel powered by e-kerosene or liquid hydrogen could have life cycle environmental impacts that overshoot global climate change and biodiversity loss thresholds by several orders of magnitude. Based on our case results for Sweden, for aviation to develop within the planetary limits, we recommend cross-sector collaboration to address environmental impacts from fossil-free energy supplies and the establishment of integrated targets that incorporate broader environmental issues. Given the unlikelihood of decoupling growth from environmental impacts, policymakers and the aviation sector should consider concurrently supporting technological development and implementing measures to manage air travel demand.

航空旅行需求正在迅速增长，航空业正依靠技术将其增长对环境的影响分离开来。以瑞典为例，我们评估了2050年中距离航空旅行的绝对环境可持续性，并根据地球极限对航空业的环境影响进行了定位。我们采用了一个新的框架，整合了前瞻性生命周期评估和绝对环境可持续性评估方法。我们的研究结果表明，预计由电子煤油或液氢驱动的中距离航空旅行可能会对生命周期环境产生影响，超过全球气候变化和生物多样性损失阈值的几个数量级。根据瑞典的案例结果，为了使航空业在地球限制范围内发展，我们建议开展跨部门合作，以解决无化石能源供应对环境的影响，并制定包含更广泛环境问题的综合目标。鉴于经济增长不可能与环境影响脱钩，政策制定者和航空业应同时考虑支持技术发展和实施管理航空旅行需求的措施。

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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 : 2025-10-01 Epub 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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