One EarthPub Date : 2024-09-20DOI: 10.1016/j.oneear.2024.08.012
Sarah L. Nordahl, Rebecca J. Hanes, Kimberley K. Mayfield, Corey Myers, Sarah E. Baker, Corinne D. Scown
{"title":"Carbon accounting for carbon dioxide removal","authors":"Sarah L. Nordahl, Rebecca J. Hanes, Kimberley K. Mayfield, Corey Myers, Sarah E. Baker, Corinne D. Scown","doi":"10.1016/j.oneear.2024.08.012","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.08.012","url":null,"abstract":"<p>Carbon dioxide removal (CDR) technologies are essential to address climate change and serve to compensate for legacy and hard-to-abate greenhouse gas emissions. Although near-term emissions reductions should be the priority, development and deployment of CDR must proceed now to ensure that relevant technologies are ready at scale in the future. Despite a rapid growth in CDR purchases, no single standardized methodology for evaluating project-level net CO<sub>2</sub> removal exists. Life cycle assessment (LCA) frequently produces net-negative emissions footprints, but only a small subset of those systems achieves a net flux of CO<sub>2</sub> out of the atmosphere. In contrast to LCA, CDR accounting uses expansive system boundaries and excludes avoidance credits to distinguish between systems that achieve net removal from those that only contribute to emissions mitigation. This primer discusses a framework and set of metrics for CDR accounting.</p>","PeriodicalId":52366,"journal":{"name":"One Earth","volume":null,"pages":null},"PeriodicalIF":16.2,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142259431","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}
One EarthPub Date : 2024-09-20DOI: 10.1016/j.oneear.2024.07.011
Leland K. Werden, Rebecca J. Cole, Katrin Schönhofer, Karen D. Holl, Rakan A. Zahawi, Colin Averill, Daniella Schweizer, Julio C. Calvo-Alvarado, Debra Hamilton, Francis H. Joyce, Miriam San-José, Florian Hofhansl, Lilly Briggs, David Rodríguez, Jeffrey W. Tingle, Fidel Chiriboga, Eben N. Broadbent, Gerald J. Quirós-Cedeño, Thomas W. Crowther
{"title":"Assessing innovations for upscaling forest landscape restoration","authors":"Leland K. Werden, Rebecca J. Cole, Katrin Schönhofer, Karen D. Holl, Rakan A. Zahawi, Colin Averill, Daniella Schweizer, Julio C. Calvo-Alvarado, Debra Hamilton, Francis H. Joyce, Miriam San-José, Florian Hofhansl, Lilly Briggs, David Rodríguez, Jeffrey W. Tingle, Fidel Chiriboga, Eben N. Broadbent, Gerald J. Quirós-Cedeño, Thomas W. Crowther","doi":"10.1016/j.oneear.2024.07.011","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.07.011","url":null,"abstract":"<p>There is an increasing urgency to implement large-scale ecosystem restoration to mitigate the biodiversity and climate crises. These efforts must be scaled up to counteract the widespread degradation of the world’s forests, although restoration costs can often limit their application. Thus, there is a pressing need to identify cost-effective approaches that catalyze landscape-scale ecological recovery. Here, we highlight seven assisted restoration innovations with demonstrated local-scale results that, once upscaled, hold promise to rapidly regenerate forests. We comprehensively assessed how each approach facilitated forest, woodland, and/or mangrove recovery across 143 studies. Our results reveal techniques with a marked ability to catalyze vegetation recovery compared to “business-as-usual” approaches. However, the context-dependent cost-benefit ratio and feasibility of applying particular approaches requires careful consideration. Our assessment emphasizes that we already have many of the tools necessary to drive the terrestrial restoration movement forward. It is time to implement and assess their efficacy at scale.</p>","PeriodicalId":52366,"journal":{"name":"One Earth","volume":null,"pages":null},"PeriodicalIF":16.2,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142259433","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}
One EarthPub Date : 2024-09-12DOI: 10.1016/j.oneear.2024.08.010
Shaoting Ren, Li Jia, Evan S. Miles, Massimo Menenti, Marin Kneib, Thomas E. Shaw, Pascal Buri, Michael J. McCarthy, Wei Yang, Francesca Pellicciotti, Tandong Yao
{"title":"Observed and projected declines in glacier albedo across the Third Pole in the 21st century","authors":"Shaoting Ren, Li Jia, Evan S. Miles, Massimo Menenti, Marin Kneib, Thomas E. Shaw, Pascal Buri, Michael J. McCarthy, Wei Yang, Francesca Pellicciotti, Tandong Yao","doi":"10.1016/j.oneear.2024.08.010","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.08.010","url":null,"abstract":"<p>Glaciers are crucial water resources in the Third Pole (the Tibetan Plateau and its surroundings) and are shrinking in response to climate change. Glacier albedo is an expression of glacier interactions with climate and dust/black carbon, and albedo reduction enhances glacier mass loss, but its changes and potential drivers remain poorly quantified. We leverage satellite observations to explore the variability of glacier albedo and understand its sensitivity to potential drivers and its future evolution. We find that glacier albedo has declined during 2001–2020, but high interannual variability is also an important signal. These variations are highly sensitive to air temperature and snow conditions and to nearby dust/black carbon emission sources. Future changes to these drivers will lead to further decreases of 2.9%–12.5% in glacier albedo by 2100 under different warming scenarios. These findings highlight the importance of albedo in glacier future evolution and the urgency of action to mitigate climate warming.</p>","PeriodicalId":52366,"journal":{"name":"One Earth","volume":null,"pages":null},"PeriodicalIF":16.2,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213821","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}
One EarthPub Date : 2024-09-11DOI: 10.1016/j.oneear.2024.08.004
Jens-Christian Svenning, Matthew R. Kerr, Ninad A. Mungi, Alejandro Ordonez, Felix Riede
{"title":"Defining the Anthropocene as a geological epoch captures human impacts’ triphasic nature to empower science and action","authors":"Jens-Christian Svenning, Matthew R. Kerr, Ninad A. Mungi, Alejandro Ordonez, Felix Riede","doi":"10.1016/j.oneear.2024.08.004","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.08.004","url":null,"abstract":"<p>Defining an Anthropocene epoch from the mid-1900s allows representing human environmental impacts’ triphasic nature within the International Geological Timescale. Such an epoch captures humanity’s current planetary importance, with the Holocene and Late Pleistocene representing earlier phases of intensifying impacts. This formal framework empowers science and action toward planetary stewardship.</p>","PeriodicalId":52366,"journal":{"name":"One Earth","volume":null,"pages":null},"PeriodicalIF":16.2,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213823","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}
One EarthPub Date : 2024-09-11DOI: 10.1016/j.oneear.2024.08.007
Yixin Guo, Lin Zhang, Wilfried Winiwarter, Hans J.M. van Grinsven, Xiaolin Wang, Ke Li, Da Pan, Zehui Liu, Baojing Gu
{"title":"Ambitious nitrogen abatement is required to mitigate future global PM2.5 air pollution toward the World Health Organization targets","authors":"Yixin Guo, Lin Zhang, Wilfried Winiwarter, Hans J.M. van Grinsven, Xiaolin Wang, Ke Li, Da Pan, Zehui Liu, Baojing Gu","doi":"10.1016/j.oneear.2024.08.007","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.08.007","url":null,"abstract":"<p>Nitrogen oxides (NO<sub>x</sub>) and ammonia (NH<sub>3</sub>) contribute substantially to current global fine particulate matter (PM<sub>2.5</sub>) pollution. Their future role remains unclear and is complicated by interactions with background emissions. Here, we show that under climate mitigation scenarios, by 2050, a hypothetical phaseout of anthropogenic NH<sub>3</sub> emissions would reduce PM<sub>2.5</sub> by 20%–60% locally and be more effective than phasing out NO<sub>x</sub>. Reducing NH<sub>3</sub> by 25%, instead, would be less effective than 25% NO<sub>x</sub> reduction for many regions. Future reductions of NO<sub>x</sub> and sulfuric dioxides from clean energy transitions would shift the nonlinear chemical regime of secondary inorganic aerosol formation toward NH<sub>3</sub> saturation. The later NH<sub>3</sub> controls are installed, the deeper the required reductions will be to be effective, although for many regions such levels are still within technical feasibility, while NO<sub>x</sub> controls will always remain effective. Nitrogen reductions remain useful for achieving the World Health Organization guideline target for PM<sub>2.5</sub>, and NH<sub>3</sub> controls need to happen sooner rather than later.</p>","PeriodicalId":52366,"journal":{"name":"One Earth","volume":null,"pages":null},"PeriodicalIF":16.2,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213822","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}
One EarthPub Date : 2024-09-04DOI: 10.1016/j.oneear.2024.08.006
Yuang Chen, Richard A. Fuller, Tien Ming Lee, Fangyuan Hua
{"title":"Disproportionate low-elevation forest loss in over 65% of the world’s mountains calls for targeted conservation","authors":"Yuang Chen, Richard A. Fuller, Tien Ming Lee, Fangyuan Hua","doi":"10.1016/j.oneear.2024.08.006","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.08.006","url":null,"abstract":"Forest loss is a leading threat to global biodiversity. For many mountains worldwide, forest loss appears to occur disproportionately at lower elevations. This pattern—if confirmed—means widespread loss and scarcity of lower-elevation forest habitat, with profound biodiversity implications within and beyond these elevations. However, there remains no global assessment of this pattern based on robustly mapped forest loss, crucially by disentangling forest loss from the natural absence of forest. We fill this gap and demonstrate disproportionate forest loss at lower elevations for >65% of all 769 mountains in the world’s forested ecoregions that we assessed. We find a clear lack of lower-elevation forest—most of which remains unprotected—and associated warmer and drier climatic conditions, explainable by high human impacts and low precipitation at these elevations. Our findings call for targeted forest protection and restoration at lower elevations for mountains worldwide, including integrated mountain-scale conservation planning for entire elevational gradients.","PeriodicalId":52366,"journal":{"name":"One Earth","volume":null,"pages":null},"PeriodicalIF":16.2,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213826","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}
One EarthPub Date : 2024-09-02DOI: 10.1016/j.oneear.2024.08.003
Akira S. Mori, Andrew Gonzalez, Rupert Seidl, Peter B. Reich, Laura Dee, Haruka Ohashi, Yann Hautier, Michel Loreau, Forest Isbell
{"title":"Urgent climate action is needed to ensure effectiveness of protected areas for biodiversity benefits","authors":"Akira S. Mori, Andrew Gonzalez, Rupert Seidl, Peter B. Reich, Laura Dee, Haruka Ohashi, Yann Hautier, Michel Loreau, Forest Isbell","doi":"10.1016/j.oneear.2024.08.003","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.08.003","url":null,"abstract":"<p>The intertwined crises of biodiversity loss and climate change pose a significant sustainability challenge, threatening ecosystems and human well-being globally. Yet, the nuanced interplay between these challenges is often understated in policy dialogs. Global biodiversity targets, including 30% protection of the Earth’s surface by 2030, may fall short without robust climate change mitigation. Here, we illustrate that conservation through protected areas can effectively preserve forest productivity and carbon capture, which depend on tree diversity. However, failing to mitigate climate change diminishes the effectiveness of these areas, especially in warmer biomes. Even with optimal protected area selection, preserving tree diversity-dependent productivity could be compromised without significant climate change mitigation. Our findings emphasize the need to integrate climate change mitigation into biodiversity conservation policies to ensure the success of the 30 × 30 targets and sustain the ecosystem benefits biodiversity provides to society.</p>","PeriodicalId":52366,"journal":{"name":"One Earth","volume":null,"pages":null},"PeriodicalIF":16.2,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213825","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}
One EarthPub Date : 2024-08-27DOI: 10.1016/j.oneear.2024.07.020
Julian Helfenstein, Bruno Ringeval, Federica Tamburini, Vera L. Mulder, Daniel S. Goll, Xianjin He, Edwin Alblas, Yingping Wang, Alain Mollier, Emmanuel Frossard
{"title":"Understanding soil phosphorus cycling for sustainable development: A review","authors":"Julian Helfenstein, Bruno Ringeval, Federica Tamburini, Vera L. Mulder, Daniel S. Goll, Xianjin He, Edwin Alblas, Yingping Wang, Alain Mollier, Emmanuel Frossard","doi":"10.1016/j.oneear.2024.07.020","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.07.020","url":null,"abstract":"<p>Soil phosphorus (P) directly impacts major sustainability outcomes, namely crop yields, water quality, and carbon sequestration. Optimally managing P to improve sustainability outcomes requires a mechanistic understanding of P availability and transfer, alongside high-resolution spatial data. However, it is unclear if current measurement techniques, models, and maps meet the demands for science-informed management. Here, we review recent advances in measuring P fluxes, quantifying P availability, and mapping soil P resources and discuss implications for sustainability outcomes. We find that the understanding of soil P availability has significantly improved but that agronomical applications and climate models are still largely based on outdated concepts. Also, we find that spatial data on soil P resources are highly uncertain, limiting the usefulness of current P maps. We highlight steps to improve existing tools and emphasize that these improvements need to go hand in hand with policy and technological development to successfully address P-related sustainable development goals.</p>","PeriodicalId":52366,"journal":{"name":"One Earth","volume":null,"pages":null},"PeriodicalIF":16.2,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213625","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}
One EarthPub Date : 2024-08-16DOI: 10.1016/j.oneear.2024.07.015
{"title":"Summer Heat","authors":"","doi":"10.1016/j.oneear.2024.07.015","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.07.015","url":null,"abstract":"<p>Summers have always been hot, but we are experiencing exceedingly intensive heat across the world. Global temperature records break headlines more frequently thanks to anthropogenic climate change. In response to the deadly heatwave of 2020—which engulfed Europe with record-breaking temperatures and caused tens of thousands of deaths—artist and climate activist Diane Burko created <em>Summer Heat</em>. This 7 × 13 ft painting illustrates the causes and effects of climate change clashing into each other by displaying the Earth’s continents underneath splashes of red and blue, which reflect on the EU record-breaking heat and melting glaciers, dripping across the canvas, juxtaposed with the iconic Keeling curve that presents the accumulation of CO<sub>2</sub> in the Earth’s atmosphere based on continuous measurements taken at the Mauna Loa Observatory since 1958. This artwork was further used in a <span><span>study</span><svg aria-label=\"Opens in new window\" focusable=\"false\" height=\"20\" viewbox=\"0 0 8 8\"><path d=\"M1.12949 2.1072V1H7V6.85795H5.89111V2.90281L0.784057 8L0 7.21635L5.11902 2.1072H1.12949Z\"></path></svg></span> and showed its positive influence on bridging political divisions in climate change.</p>","PeriodicalId":52366,"journal":{"name":"One Earth","volume":null,"pages":null},"PeriodicalIF":16.2,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142226985","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}
One EarthPub Date : 2024-08-16DOI: 10.1016/j.oneear.2024.07.021
Neha Agarwal, Ajay Nagpure, Anu Ramaswami
{"title":"Studying extreme heat and social inequality in Global South cities: Recommendations for cross-cultural research","authors":"Neha Agarwal, Ajay Nagpure, Anu Ramaswami","doi":"10.1016/j.oneear.2024.07.021","DOIUrl":"https://doi.org/10.1016/j.oneear.2024.07.021","url":null,"abstract":"<p>International research in Global South cities is urgently needed to address unprecedented heat, enervating humidity, and daunting social inequality projected to impact >3 billion urbanites in Asia and Africa. Yet, researchers are ill-equipped to navigate cultural and physiological challenges inherent in this work, for which we develop cross-cultural protocols.</p>","PeriodicalId":52366,"journal":{"name":"One Earth","volume":null,"pages":null},"PeriodicalIF":16.2,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142213827","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}