Pub Date : 2024-05-06DOI: 10.1016/j.oneear.2024.04.005
Xuesong Zhang, Ge Kong, Yuan Jiang, Linling Zhou, Kejie Wang, Xin Zhang, Guanya Ji, Lujia Han
Plastic waste disposal is mounting, with consequences for both environmental and human wellbeing. Addressing the plastic waste challenge through chemically upcycling waste to other products is gaining momentum but can have trade-offs. For example, the conversion of plastic waste into hydrogen rich gas can be achieved via catalytic steam, but this process can release large quantities of CO2 (∼12 kg CO2 per 1 kg H2 production). High-performance bifunctional catalysts, such as carbon nanotubes (CNTs), offer a potential solution, but suppressing CO2 emissions without compromising H2-rich gas yield remains challenging. Here, we synthesize a new CNTs-bridging nanocomposite by integrating Ni nanoparticles with HY zeolite. Employing this bifunctional CNTs-bridging nanocomposite in the catalytic steam reforming of polyethylene can achieve high-quality H2 yields of up to 2,340 mL/gplastic and a 77% reduction in CO2 emissions (1.68 g CO2 per 1 g H2 production). This work introduces an innovative CNTs-bridging strategy to valorize plastic waste into high-quality H2-rich syngas while suppressing CO2 emissions.
塑料垃圾的处理量不断增加，对环境和人类福祉都造成了影响。通过将废弃物转化为其他产品的化学升级再循环方法来应对塑料废弃物挑战的势头日益强劲，但这一方法可能会产生一些利弊。例如，可通过催化蒸汽将塑料垃圾转化为富氢气体，但这一过程会释放大量二氧化碳（每生产 1 千克氢气释放 12 千克二氧化碳）。高性能双功能催化剂，如碳纳米管（CNT），提供了一种潜在的解决方案，但在不影响富氢气体产量的情况下抑制二氧化碳排放仍然具有挑战性。在这里，我们通过将镍纳米颗粒与 HY 沸石相结合，合成了一种新型 CNT 桥接纳米复合材料。在聚乙烯催化蒸汽转化过程中使用这种双功能 CNTs-桥接纳米复合材料，可获得高达 2,340 mL/gplastic 的高质量 H2 产率，并减少 77% 的 CO2 排放（每生产 1 g H2 产生 1.68 g CO2）。这项工作介绍了一种创新的碳纳米管桥接策略，可将塑料废弃物转化为富含高质量 H2- 的合成气，同时抑制二氧化碳排放。
{"title":"Innovative carbon nanotubes-bridging strategy valorizes plastic waste into high-quality H2-rich syngas while suppressing CO2 emissions","authors":"Xuesong Zhang, Ge Kong, Yuan Jiang, Linling Zhou, Kejie Wang, Xin Zhang, Guanya Ji, Lujia Han","doi":"10.1016/j.oneear.2024.04.005","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.04.005","url":null,"abstract":"<p>Plastic waste disposal is mounting, with consequences for both environmental and human wellbeing. Addressing the plastic waste challenge through chemically upcycling waste to other products is gaining momentum but can have trade-offs. For example, the conversion of plastic waste into hydrogen rich gas can be achieved via catalytic steam, but this process can release large quantities of CO<sub>2</sub> (∼12 kg CO<sub>2</sub> per 1 kg H<sub>2</sub> production). High-performance bifunctional catalysts, such as carbon nanotubes (CNTs), offer a potential solution, but suppressing CO<sub>2</sub> emissions without compromising H<sub>2</sub>-rich gas yield remains challenging. Here, we synthesize a new CNTs-bridging nanocomposite by integrating Ni nanoparticles with HY zeolite. Employing this bifunctional CNTs-bridging nanocomposite in the catalytic steam reforming of polyethylene can achieve high-quality H<sub>2</sub> yields of up to 2,340 mL/g<sub>plastic</sub> and a 77% reduction in CO<sub>2</sub> emissions (1.68 g CO<sub>2</sub> per 1 g H<sub>2</sub> production). This work introduces an innovative CNTs-bridging strategy to valorize plastic waste into high-quality H<sub>2</sub>-rich syngas while suppressing CO<sub>2</sub> emissions.</p>","PeriodicalId":52366,"journal":{"name":"One Earth","volume":"27 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140886195","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}
Pub Date : 2024-05-03DOI: 10.1016/j.oneear.2024.04.004
Madeline Judge, Thijs Bouman, Linda Steg, Jan Willem Bolderdijk
To address the climate crisis, it is important to accelerate social tipping points in the adoption of sustainable behaviors. Social tipping points describe the process whereby small changes trigger self-perpetuating feedback loops and produce a fundamental transformation in the social system. The current literature does not adequately address how the moralized nature of sustainable behaviors could lead to unique tipping trajectories. In this Perspective, we propose a dynamic model of moralized social change that provides insights on how novel sustainable behaviors spread over society and how to speed up this process. Although moralization may initially generate social friction that delays tipping points, it can accelerate change at later stages by increasing social pressure on laggards. By implementing early system-level changes, policymakers can help reduce the initial inertia created by moralization and accelerate social tipping points. We discuss how our model can inform the decisions of activists, policymakers, professionals, and researchers.
{"title":"Accelerating social tipping points in sustainable behaviors: Insights from a dynamic model of moralized social change","authors":"Madeline Judge, Thijs Bouman, Linda Steg, Jan Willem Bolderdijk","doi":"10.1016/j.oneear.2024.04.004","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.04.004","url":null,"abstract":"<p>To address the climate crisis, it is important to accelerate social tipping points in the adoption of sustainable behaviors. Social tipping points describe the process whereby small changes trigger self-perpetuating feedback loops and produce a fundamental transformation in the social system. The current literature does not adequately address how the moralized nature of sustainable behaviors could lead to unique tipping trajectories. In this Perspective, we propose a dynamic model of moralized social change that provides insights on how novel sustainable behaviors spread over society and how to speed up this process. Although moralization may initially generate social friction that delays tipping points, it can accelerate change at later stages by increasing social pressure on laggards. By implementing early system-level changes, policymakers can help reduce the initial inertia created by moralization and accelerate social tipping points. We discuss how our model can inform the decisions of activists, policymakers, professionals, and researchers.</p>","PeriodicalId":52366,"journal":{"name":"One Earth","volume":"241 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140828463","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}
Pub Date : 2024-04-30DOI: 10.1016/j.oneear.2024.04.002
Zhangcai Qin, Yakun Zhu, Josep G. Canadell, Min Chen, Tingting Li, Umakant Mishra, Wenping Yuan
Land-use change (LUC) is a major source of global anthropogenic carbon emissions that contribute to climate change. However, current estimates of LUC-induced emissions vary widely with differences in data and models, making it challenging to identify and manage emissions hotspots by location and LUC activity. Here, we estimated spatially explicit carbon fluxes associated with global major gross land-use transitions based on a new bookkeeping model (i.e., LUCE). Between 1961 and 2020, LUC induced 215 and 142 Pg C of global carbon emissions and removals, respectively, resulting in average net emissions (ELUC) of 1.21 Pg C year−1. Latin America, Southeast Asia, and Sub-Saharan Africa dominated global ELUC with 69% of 60-year cumulative emissions, or about 86% between 2001 and 2020. Forest-related LUC activities (e.g., deforestation, reforestation) contributed largely to both regional and global carbon fluxes. Our findings shed new light on identifying LUC-induced emissions hotspots and managing land for climate mitigation and conservation.
{"title":"Global spatially explicit carbon emissions from land-use change over the past six decades (1961–2020)","authors":"Zhangcai Qin, Yakun Zhu, Josep G. Canadell, Min Chen, Tingting Li, Umakant Mishra, Wenping Yuan","doi":"10.1016/j.oneear.2024.04.002","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.04.002","url":null,"abstract":"<p>Land-use change (LUC) is a major source of global anthropogenic carbon emissions that contribute to climate change. However, current estimates of LUC-induced emissions vary widely with differences in data and models, making it challenging to identify and manage emissions hotspots by location and LUC activity. Here, we estimated spatially explicit carbon fluxes associated with global major gross land-use transitions based on a new bookkeeping model (i.e., LUCE). Between 1961 and 2020, LUC induced 215 and 142 Pg C of global carbon emissions and removals, respectively, resulting in average net emissions (<em>E</em><sub>LUC</sub>) of 1.21 Pg C year<sup>−1</sup>. Latin America, Southeast Asia, and Sub-Saharan Africa dominated global <em>E</em><sub>LUC</sub> with 69% of 60-year cumulative emissions, or about 86% between 2001 and 2020. Forest-related LUC activities (e.g., deforestation, reforestation) contributed largely to both regional and global carbon fluxes. Our findings shed new light on identifying LUC-induced emissions hotspots and managing land for climate mitigation and conservation.</p>","PeriodicalId":52366,"journal":{"name":"One Earth","volume":"81 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140828464","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}
Pub Date : 2024-04-19DOI: 10.1016/j.oneear.2024.02.013
Michael Sievers, Rod M. Connolly, Kimberly A. Finlayson, Michaela E. Kitchingman, Andria Ostrowski, Ryan M. Pearson, Mischa P. Turschwell, Maria F. Adame, Ana B. Bugnot, Ellen Ditria, Robin Hale, Brian R. Silliman, Stephen E. Swearer, Stephanie R. Valdez, Christopher J. Brown
Coastal ecosystems are being restored to combat environmental degradation and biodiversity loss. Colonization of restored sites by non-habitat-forming animals improves outcomes for ecosystems and society, yet there has been no review of how animals respond to coastal restoration. Here, we extracted 5,133 response ratios from 160 studies to show how coastal ecosystem restoration benefits animals as individuals, populations, and communities. Abundances and diversity at restored sites were greater than at degraded (61% and 35%, respectively) and unstructured (42% and 37%) control sites and similar to those at natural reference sites (both within 2%). Individuals in restored sites were similar in condition to those within control and reference sites. However, responses among projects were highly variable and rarely related to restored site maturity or characteristics, presenting a challenge for predicting outcomes and highlighting the need to improve restoration techniques, monitoring, and reporting. Nevertheless, studies so far suggest coastal restoration benefits biodiversity.
{"title":"Enhanced but highly variable biodiversity outcomes from coastal restoration: A global synthesis","authors":"Michael Sievers, Rod M. Connolly, Kimberly A. Finlayson, Michaela E. Kitchingman, Andria Ostrowski, Ryan M. Pearson, Mischa P. Turschwell, Maria F. Adame, Ana B. Bugnot, Ellen Ditria, Robin Hale, Brian R. Silliman, Stephen E. Swearer, Stephanie R. Valdez, Christopher J. Brown","doi":"10.1016/j.oneear.2024.02.013","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.02.013","url":null,"abstract":"Coastal ecosystems are being restored to combat environmental degradation and biodiversity loss. Colonization of restored sites by non-habitat-forming animals improves outcomes for ecosystems and society, yet there has been no review of how animals respond to coastal restoration. Here, we extracted 5,133 response ratios from 160 studies to show how coastal ecosystem restoration benefits animals as individuals, populations, and communities. Abundances and diversity at restored sites were greater than at degraded (61% and 35%, respectively) and unstructured (42% and 37%) control sites and similar to those at natural reference sites (both within 2%). Individuals in restored sites were similar in condition to those within control and reference sites. However, responses among projects were highly variable and rarely related to restored site maturity or characteristics, presenting a challenge for predicting outcomes and highlighting the need to improve restoration techniques, monitoring, and reporting. Nevertheless, studies so far suggest coastal restoration benefits biodiversity.","PeriodicalId":52366,"journal":{"name":"One Earth","volume":"95 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140636266","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}
Pub Date : 2024-04-19DOI: 10.1016/j.oneear.2024.03.007
Tomas Roslin
{"title":"Understanding insect movements through space and time is vital for safeguarding global ecosystem services","authors":"Tomas Roslin","doi":"10.1016/j.oneear.2024.03.007","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.03.007","url":null,"abstract":"","PeriodicalId":52366,"journal":{"name":"One Earth","volume":"30 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140636290","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}
Pub Date : 2024-04-19DOI: 10.1016/j.oneear.2024.03.012
Manju Rahi, Henk van den Berg, Indra Vythilingam, Raman Velayudhan
{"title":"Insect vectors on the move","authors":"Manju Rahi, Henk van den Berg, Indra Vythilingam, Raman Velayudhan","doi":"10.1016/j.oneear.2024.03.012","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.03.012","url":null,"abstract":"","PeriodicalId":52366,"journal":{"name":"One Earth","volume":"88 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140636291","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}
Pub Date : 2024-04-19DOI: 10.1016/j.oneear.2024.03.008
John S. Terblanche, Susana Clusella-Trullas, Philipp Lehmann
Climate change is altering the abundance and geographic distributions of insects, with potential consequences for human health, sustainable agriculture, and ecosystem function. How insects will be affected during their routine movements by climate-change-associated warming remains poorly understood. Here, we therefore review the potential impacts of, and mechanisms involved in coping with, heat stress during movement from an ecophysiological perspective. Within a movement ecology framework, we propose key ecophysiology attributes that support insect movement with warming conditions. By identifying major knowledge gaps and focusing on movement-related traits discussed here, future studies can further strengthen mechanistic links between functional traits and insect redistribution under climate change and, therefore, provide more robust forecasting tools.
{"title":"How climate change might impact insect movement via physiological mechanisms","authors":"John S. Terblanche, Susana Clusella-Trullas, Philipp Lehmann","doi":"10.1016/j.oneear.2024.03.008","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.03.008","url":null,"abstract":"Climate change is altering the abundance and geographic distributions of insects, with potential consequences for human health, sustainable agriculture, and ecosystem function. How insects will be affected during their routine movements by climate-change-associated warming remains poorly understood. Here, we therefore review the potential impacts of, and mechanisms involved in coping with, heat stress during movement from an ecophysiological perspective. Within a movement ecology framework, we propose key ecophysiology attributes that support insect movement with warming conditions. By identifying major knowledge gaps and focusing on movement-related traits discussed here, future studies can further strengthen mechanistic links between functional traits and insect redistribution under climate change and, therefore, provide more robust forecasting tools.","PeriodicalId":52366,"journal":{"name":"One Earth","volume":"95 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140636289","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}
Pub Date : 2024-04-19DOI: 10.1016/j.oneear.2024.03.009
Helen E. Roy, Angeliki F. Martinou, Michael J.O. Pocock, Victoria Werenkraut, David B. Roy
Biodiversity is declining rapidly. The most important causes of biodiversity loss are climate change, land- and sea-use change, invasive alien species, pollution, and overexploitation of natural resources. This unprecedented deterioration of the biosphere has profound and far-reaching consequences for insects, who play many important roles within ecosystems, including pollination and decomposition. Declines in the abundance and distribution of insects threaten these essential ecosystem functions. While there is no doubt that urgent and immediate measures are needed to address biodiversity loss and climate change, monitoring of insects is a priority to underpin and inform ongoing conservation action. Citizen science has emerged as an important tool for monitoring insects. In this primer, we explain the application of citizen science for monitoring insects and emerging approaches using digital technologies.
{"title":"The global reach of citizen science for monitoring insects","authors":"Helen E. Roy, Angeliki F. Martinou, Michael J.O. Pocock, Victoria Werenkraut, David B. Roy","doi":"10.1016/j.oneear.2024.03.009","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.03.009","url":null,"abstract":"Biodiversity is declining rapidly. The most important causes of biodiversity loss are climate change, land- and sea-use change, invasive alien species, pollution, and overexploitation of natural resources. This unprecedented deterioration of the biosphere has profound and far-reaching consequences for insects, who play many important roles within ecosystems, including pollination and decomposition. Declines in the abundance and distribution of insects threaten these essential ecosystem functions. While there is no doubt that urgent and immediate measures are needed to address biodiversity loss and climate change, monitoring of insects is a priority to underpin and inform ongoing conservation action. Citizen science has emerged as an important tool for monitoring insects. In this primer, we explain the application of citizen science for monitoring insects and emerging approaches using digital technologies.","PeriodicalId":52366,"journal":{"name":"One Earth","volume":"48 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140636331","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}
Pub Date : 2024-04-19DOI: 10.1016/j.oneear.2024.03.003
Ingolf Steffan-Dewenter, Rachel Bezner Kerr, Marcell Karl Peters
{"title":"Insect diversity for agroecosystem resilience in a changing climate","authors":"Ingolf Steffan-Dewenter, Rachel Bezner Kerr, Marcell Karl Peters","doi":"10.1016/j.oneear.2024.03.003","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.03.003","url":null,"abstract":"","PeriodicalId":52366,"journal":{"name":"One Earth","volume":"4 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140636577","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}
Pub Date : 2024-04-19DOI: 10.1016/j.oneear.2024.03.014
Stanley Burgiel
{"title":"Q&A with Dr. Stanley Burgiel","authors":"Stanley Burgiel","doi":"10.1016/j.oneear.2024.03.014","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.03.014","url":null,"abstract":"","PeriodicalId":52366,"journal":{"name":"One Earth","volume":"48 1","pages":""},"PeriodicalIF":16.2,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140636462","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}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号