{"title":"Energy- and cost-efficient CO2 capture from dilute emissions by pyridinic-graphene membranes","authors":"Marina Micari, Kuang-Jung Hsu, Stefania Bempeli, Kumar Varoon Agrawal","doi":"10.1038/s41893-025-01696-5","DOIUrl":"10.1038/s41893-025-01696-5","url":null,"abstract":"Membrane-based carbon capture offers an energy-efficient and environmentally friendly alternative to conventional absorption-based processes, yet adoption remains limited by its performance with dilute CO2 sources such as natural gas power plants. Here we present a techno-economic assessment of pyridinic-graphene membranes—porous graphene membranes hosting pyridinic nitrogen—that yield increasingly high CO2 permeance and selectivity as CO2 concentration in the feed decreases. This unique behaviour substantially reduces energy consumption, process footprint and capture costs, even when considering the non-ideal effects such as concentration polarization and pressure drops. Using uncertainty-aware cost modelling, including membrane cost, electricity prices, contingency factors and learning curves, we show that capture costs can reach US$50–100 per ton CO2 for natural gas power plants and as low as US$25–50 per ton CO2 for coal and cement plants, positioning this technology favourably against state-of-the-art capture processes. Our work bridges material innovation with process optimization, highlighting the role of advanced membrane materials and process design in cost-effective carbon capture for diverse industrial sectors. Due to the very low CO2 content in dilute flue gas emissions, membrane-based carbon capture is typically deemed infeasible. This uncertainty-aware techno-economic analysis suggests that pyridinic-graphene membranes, which perform better as CO2 concentration decreases, offer a viable solution.","PeriodicalId":19056,"journal":{"name":"Nature Sustainability","volume":"9 1","pages":"164-175"},"PeriodicalIF":27.1,"publicationDate":"2025-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41893-025-01696-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146049448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Minjung Lee, Yuanzhe Liang, Amy A. Cuthbertson, Samah Y. Mohamed, Allen Puente-Urbina, William E. Michener, Joel Miscall, Clarissa Lincoln, Ciaran W. Lahive, Jason S. DesVeaux, Eli J. Fastow, Karen I. Winey, Hoon Choi, Brandon C. Knott, Natalie Banakis, Robert D. Allen, Gregg T. Beckham, Katrina M. Knauer
{"title":"Extraction, purification, and reuse of dyes from coloured polyester textiles","authors":"Minjung Lee, Yuanzhe Liang, Amy A. Cuthbertson, Samah Y. Mohamed, Allen Puente-Urbina, William E. Michener, Joel Miscall, Clarissa Lincoln, Ciaran W. Lahive, Jason S. DesVeaux, Eli J. Fastow, Karen I. Winey, Hoon Choi, Brandon C. Knott, Natalie Banakis, Robert D. Allen, Gregg T. Beckham, Katrina M. Knauer","doi":"10.1038/s41893-025-01686-7","DOIUrl":"10.1038/s41893-025-01686-7","url":null,"abstract":"The removal of dyes from coloured textile waste represents a sustainable approach to textile recycling, enabling the recovery of valuable chemical, and material resources that would otherwise be discarded. Up to 40% of the greenhouse gas emissions from textiles originate from dye production, making efficient recycling of dyes a major opportunity for curbing emissions and minimizing waste in both textile manufacturing and recycling. Here we demonstrate a process for the extraction, purification, and reuse of mixed dyes from polyester textiles using bio-based, non-hazardous solvents selected on the basis of computational predictions for polyester and dye solubilities. Extracted dyes are purified to individual compounds using counter-current chromatography and analysed via liquid chromatography–mass spectrometry. Post-extraction characterization of the extracted dyes and polymer substrate confirms dye colour retention and polyester fabric property preservation. Dye recycling is demonstrated by redyeing colour-free fabrics with the recovered dyes. We further show a potential process configuration for dye removal using a flow-through reactor packed with a textile substrate. The proposed dye removal process produces reusable, recyclable dyes, and dye-free fabrics, thus facilitating textile recycling. The textile industry’s reliance on synthetic dyes is an important source of greenhouse gas emissions. Here the authors describe a process involving sustainable solvents that allows the extraction, purification, and reuse of dyes, as well as the recycling of dye-free fabrics.","PeriodicalId":19056,"journal":{"name":"Nature Sustainability","volume":"9 1","pages":"96-107"},"PeriodicalIF":27.1,"publicationDate":"2025-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146049435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nicole Redvers, Danya Carroll, Kelly Menzel, Sean Hillier
{"title":"One Health and Indigenous Peoples at a crossroads","authors":"Nicole Redvers, Danya Carroll, Kelly Menzel, Sean Hillier","doi":"10.1038/s41893-025-01698-3","DOIUrl":"10.1038/s41893-025-01698-3","url":null,"abstract":"Understanding the intersections between Indigenous Peoples and the One Health approach demands a fundamental reorientation of how translational work is conceptualized, enacted and evaluated. Partnership between systems may be possible with a clear recognition by the One Health community of Indigenous rights and Indigenous knowledge systems.","PeriodicalId":19056,"journal":{"name":"Nature Sustainability","volume":"9 1","pages":"5-7"},"PeriodicalIF":27.1,"publicationDate":"2025-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146049432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shipeng Dong, Kun Lu, Yu Miao, Fengmei Cui, Yanxu Zhang, Pengfei Xue, Liangliang Zhang, Juan Diwu, Zhifang Chai, Shuao Wang, Liang Mao
{"title":"Human exposure risk via algae-induced transfer of tritiated water in the marine food chain","authors":"Shipeng Dong, Kun Lu, Yu Miao, Fengmei Cui, Yanxu Zhang, Pengfei Xue, Liangliang Zhang, Juan Diwu, Zhifang Chai, Shuao Wang, Liang Mao","doi":"10.1038/s41893-025-01669-8","DOIUrl":"10.1038/s41893-025-01669-8","url":null,"abstract":"Understanding the health impact of human radiation exposure from tritiated water release is crucial for the management and sustainability of nuclear energy. However, it remains not fully explored owing to the neglect of bioconversion products (organically bound tritium, OBT) along the food chain. Here by evaluating the uptake and chemical transfer of tritium in biota, we show the critical role of algae in rapidly incorporating and transferring tritiated water into OBT, which serves as nutrients for trophic transfer to fish. Notably, the specific retention of OBT in the fish brain, by integrating into biomolecules, potentially disrupts key metabolic reactions. The derived concentration factors and biomagnification factors are instrumental in estimating the internal exposure dose to human individuals, thereby enabling more accurate risk assessments for both planned tritium releases and accidental leakages. This work highlights the importance of comprehensive evaluation and mitigation of tritium exposure risks. This work assesses the enrichment and organification of tritium by algae and the transfer along the marine food chain, suggesting human health risks and highlighting the importance of radioactive isotope management.","PeriodicalId":19056,"journal":{"name":"Nature Sustainability","volume":"9 1","pages":"153-163"},"PeriodicalIF":27.1,"publicationDate":"2025-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146049443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Assessing the risk of tritiated water tritium","authors":"Brian A. Powell","doi":"10.1038/s41893-025-01694-7","DOIUrl":"10.1038/s41893-025-01694-7","url":null,"abstract":"Cleanup activities at the Fukushima Daiichi site will include the release of tritium to ocean waters. Although the dose is small compared with natural background radiation, a study now shows that uptake of the tritium by algae and subsequent trophic transfer could potentially result in an increased dose to humans.","PeriodicalId":19056,"journal":{"name":"Nature Sustainability","volume":"9 1","pages":"12-13"},"PeriodicalIF":27.1,"publicationDate":"2025-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146049429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A delivery agenda on climate change","authors":"","doi":"10.1038/s41893-025-01719-1","DOIUrl":"10.1038/s41893-025-01719-1","url":null,"abstract":"Ten years after the adoption of the Paris Agreement, the climate crisis is escalating. It is time for world leaders to confront the reality of a warming planet with pragmatism and actions.","PeriodicalId":19056,"journal":{"name":"Nature Sustainability","volume":"8 11","pages":"1235-1235"},"PeriodicalIF":27.1,"publicationDate":"2025-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41893-025-01719-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145547333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Best practices for catalytic water treatment","authors":"Claire Chouinard, Paul Westerhoff, Jae-Hong Kim","doi":"10.1038/s41893-025-01687-6","DOIUrl":"10.1038/s41893-025-01687-6","url":null,"abstract":"Although catalytic processes offer a low-cost, low-energy alternative to traditional water treatment methods, they still face a lack of industrial adoption. Here we recommend standardized rigorous practices on the catalyst testing to bridge the gap between laboratory research and practical application.","PeriodicalId":19056,"journal":{"name":"Nature Sustainability","volume":"9 1","pages":"8-11"},"PeriodicalIF":27.1,"publicationDate":"2025-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146049428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Global decent living standards could be achieved by moderate build-up of material stocks","authors":"","doi":"10.1038/s41893-025-01671-0","DOIUrl":"10.1038/s41893-025-01671-0","url":null,"abstract":"Global inequalities leave billions without the services necessary for a decent living standard. Our analysis suggests that even moderate additions to societies’ material stocks in buildings, infrastructure and machinery could secure universal decent living standards, by 2030 at current construction rates.","PeriodicalId":19056,"journal":{"name":"Nature Sustainability","volume":"8 12","pages":"1441-1442"},"PeriodicalIF":27.1,"publicationDate":"2025-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145772829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eartha Weber, Vassilis Daioglou, Laszlo Vreedenburgh, Jonathan Doelman, George Downward, Maria Gabriela Matias de Pinho, Detlef van Vuuren
{"title":"Modelling PM2.5 reduction scenarios for future cardiopulmonary disease reduction","authors":"Eartha Weber, Vassilis Daioglou, Laszlo Vreedenburgh, Jonathan Doelman, George Downward, Maria Gabriela Matias de Pinho, Detlef van Vuuren","doi":"10.1038/s41893-025-01676-9","DOIUrl":"10.1038/s41893-025-01676-9","url":null,"abstract":"Long-term PM2.5 exposure is a risk factor for cardiovascular and respiratory mortality. Here a global health impact assessment was conducted utilizing seven future scenarios evaluating strategies to reduce PM2.5 exposure. Strategies included reducing fossil fuel use, air pollution control, adopting cleaner cooking methods and combinations thereof. Under current trends, air quality is projected to improve by 2050; nevertheless, the absolute attributable burden of ischaemic heart disease, stroke and chronic obstructive pulmonary disease remains high in many regions. Cleaner cooking fuel use is effective in the short term (by 2030) in South and Central America, Asia, and Africa for reducing PM2.5-related deaths. In the long term (by 2050) for most regions, only strategies that simultaneously target ambient and cooking-related PM2.5 resulted in sustained improvements that expand beyond current trends for reducing disease burden across these three health outcomes. In the Asian region, for example, under current trends, the population-attributable fraction decreases from 35% in 2015 to 18% in 2050. In the scenario combining universal clean cooking and climate policy, it drops further to 15%, and when all strategies are combined, it reaches as low as 11% by 2050. With all strategies combined, the average global population-weighted PM2.5 exposure from both ambient and cooking sources is reduced by nearly two-thirds (66 µg m−3 compared with 26 µg m−3). For North Africa and the Middle East region, the population-attributable fraction remains high across all scenarios. Additional strategies beyond those mentioned here are required to further improve air quality. It is recommended to pursue climate mitigation alongside universal access to cleaner household fuels to maximize cardiopulmonary health benefits. Exposure to air pollution poses a substantial risk to health, contributing to high rates of cardiovascular and respiratory mortality. A study now evaluates the health impacts of different PM2.5 reduction strategies, providing evidence of their effectiveness across different regions and timeframes.","PeriodicalId":19056,"journal":{"name":"Nature Sustainability","volume":"9 1","pages":"77-85"},"PeriodicalIF":27.1,"publicationDate":"2025-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146049447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}