Chaehyeong Lee, Hajoon Song, Yeonju Choi, Ajin Cho, John Marshall
{"title":"Observed multi-decadal increase in the surface ocean’s thermal inertia","authors":"Chaehyeong Lee, Hajoon Song, Yeonju Choi, Ajin Cho, John Marshall","doi":"10.1038/s41558-025-02245-w","DOIUrl":"10.1038/s41558-025-02245-w","url":null,"abstract":"The ocean’s surface layer has a crucial role in Earth’s climate, absorbing excess atmospheric heat, thereby regulating global temperatures. Here, using global daily sea surface temperature (SST) data, we document a notable increase in the persistence of SST anomalies across the global ocean since 1982. This trend is also evident in frequency space, showing a decreased variance in SSTs on timescales shorter than a month, but a slight increase on longer timescales. A simple stochastic model attributes this prolonged memory to three key factors––a deepening of the surface mixed layer, a weakening of oceanic forcing and reduced damping rates. The first two factors decrease the variance on shorter timescales, while the third increases it on longer timescales. Our findings have great relevance to the observed increase in the duration of marine heatwaves and the associated heightened thermal threats to marine organisms. Our study also suggests that the ocean’s ability to sequester heat is weakening. Analysis of 42 years of daily sea surface temperature data shows increasing persistence of anomalies. These changes, which are attributed to deepening of the mixed layer, reduced oceanic forcing and reduced damping associated with stronger stratification, have implications for marine heatwave duration.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"15 3","pages":"308-314"},"PeriodicalIF":29.6,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143191927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Antoine Mandel, Stefano Battiston, Irene Monasterolo
{"title":"Mapping global financial risks under climate change","authors":"Antoine Mandel, Stefano Battiston, Irene Monasterolo","doi":"10.1038/s41558-025-02244-x","DOIUrl":"10.1038/s41558-025-02244-x","url":null,"abstract":"There is growing concern about the potential impacts of climate change on financial stability but little quantitative evidence available on the potential magnitude of financial risks induced by climate extremes. Here we provide a forward-looking assessment of the impacts of floods, storms, and wildfires on a universe of securities representative of global market capitalization, using the structural climate credit-risk model CLIMACRED-PHYS. We show that there can be a substantial amplification of direct economic losses arising from firms’ financial leverage. We highlight the importance of cross-border climate financial risks, notably the transfer of impacts from production facilities in emerging economies to firms in developed economies. Finally, we quantify the potential increase of financial risks induced by climate change. Overall, our results emphasize the relevance of asset-level climate risk assessment for financial regulation and the importance of integrating financial impacts in the assessment of adaptation policies. Climate change will impact financial stability, but the quantitative evidence on the magnitude of such risks is still rare. With a forward-looking structural credit-risk model, researchers map how physical risks can be amplified through financial leverage and generate cross-border climate risks.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"15 3","pages":"329-334"},"PeriodicalIF":29.6,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143124468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marina Andrijevic, Caroline Zimm, Jonathan D. Moyer, Raya Muttarak, Shonali Pachauri
{"title":"Representing gender inequality in scenarios improves understanding of climate challenges","authors":"Marina Andrijevic, Caroline Zimm, Jonathan D. Moyer, Raya Muttarak, Shonali Pachauri","doi":"10.1038/s41558-024-02242-5","DOIUrl":"10.1038/s41558-024-02242-5","url":null,"abstract":"Achieving gender equality can increase societies’ capacities to deal with climate change. Here we highlight empirical connections between gender equality and climate change adaptation and mitigation to propose a structured and detailed inclusion of gender-related aspects in the Shared Socioeconomic Pathway framework. The introduction of hypothetical pathways of gender (in)equality in the scenario space can help analyse interactions with other socioeconomic drivers and subsequent implications for adaptation and mitigation options. The extent of challenges to climate change adaptation and mitigation may substantially change depending on the rate at which societies progress towards equal access to resources and opportunities for self-realization for all genders. We propose steps that the scenario community could take to enrich the next generation of socioeconomic pathways. This Perspective highlights links between gender inequality and climate change adaptation and mitigation, and proposes a roadmap for incorporating gender issues into the Shared Socioeconomic Pathways. These scenarios could help understand challenges under diverse trajectories of gender equality.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"15 2","pages":"138-146"},"PeriodicalIF":29.6,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143083168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jennifer Morris, Steven K. Rose, John Reilly, Angelo Gurgel, Sergey Paltsev, C. Adam Schlosser
{"title":"Reconciling widely varying estimates of the global economic impacts from climate change","authors":"Jennifer Morris, Steven K. Rose, John Reilly, Angelo Gurgel, Sergey Paltsev, C. Adam Schlosser","doi":"10.1038/s41558-024-02232-7","DOIUrl":"10.1038/s41558-024-02232-7","url":null,"abstract":"Assessments of the aggregate impacts of climate change on the global economy are widely varying and diverge depending on the method employed. It is essential to understand the mechanisms behind the differing estimates and identify a robust range. Only then could these estimates meaningfully inform and guide climate actions.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"15 2","pages":"124-127"},"PeriodicalIF":29.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143077306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Policy interactions make achieving carbon neutrality in China more challenging","authors":"Yu Liu, Mingxi Du, Lingyu Yang, Qi Cui, Yawen Liu, Xinbei Li, Nenggao Zhu, Ying Li, Chen Jiang, Peng Zhou, Qiuyu Liu, Canfei He","doi":"10.1038/s41558-024-02240-7","DOIUrl":"10.1038/s41558-024-02240-7","url":null,"abstract":"The interactions between mitigation policies could hinder China’s progress toward carbon neutrality by limiting the space for effective policy implementation. Policymakers should emphasize optimizing the combination of these policies to ensure efficient decarbonization.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"15 2","pages":"134-135"},"PeriodicalIF":29.6,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41558-024-02240-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143071927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mitigation policies interactions delay the achievement of carbon neutrality in China","authors":"Yu Liu, Mingxi Du, Lingyu Yang, Qi Cui, Yawen Liu, Xinbei Li, Nenggao Zhu, Ying Li, Chen Jiang, Peng Zhou, Qiuyu Liu, Canfei He","doi":"10.1038/s41558-024-02237-2","DOIUrl":"10.1038/s41558-024-02237-2","url":null,"abstract":"The achievement of China’s carbon neutrality is crucial for the 1.5 °C target of the Paris Agreement and must involve the implementation of various mitigation policies. However, these efforts are hindered by poor knowledge of the interactions between policies. Here we use a dynamic computable general equilibrium model of China (CEEGE model) and create a policy portfolio area of 1,295 scenarios covering four major mitigation strategies (carbon pricing, energy efficiency, renewable energy and electrification of end uses). When the interactions between mitigation policies are considered, the percentage of scenarios in which the carbon neutrality target is reached by 2060 decreases by 84%, with the years in which these scenarios are achieved being delayed by 5–6 years. Only the combinations with renewable energy and electrification of end uses generate synergetic effects on both economic and mitigation impacts. Our work can inform the formulation of more efficient mitigation policy portfolios by emphasizing policy interactions. Various policy instruments are proposed to meet mitigation targets, yet the synergistic and trade-off effects of interactions are less understood. With rich scenarios of policy mixes, the authors demonstrate that in most cases these interactions will delay the achievement of carbon targets in China.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"15 2","pages":"147-152"},"PeriodicalIF":29.6,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143071928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Climate injustice through unequal news","authors":"Valerie Hase","doi":"10.1038/s41558-024-02241-6","DOIUrl":"10.1038/s41558-024-02241-6","url":null,"abstract":"High-quality coverage of climate change requires trained reporters, editorial support and financial assistance, but news media in the global south often lack access to such resources. Now, a study points to further disparities across language and regional communities.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"15 2","pages":"129-130"},"PeriodicalIF":29.6,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143050198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Limited accountability and awareness of corporate emissions target outcomes","authors":"Xiaoyan Jiang, Shawn Kim, Shirley Lu","doi":"10.1038/s41558-024-02236-3","DOIUrl":"10.1038/s41558-024-02236-3","url":null,"abstract":"Firms are increasingly announcing targets to reduce their carbon emissions, but it is unclear whether firms are held accountable for these targets. Here we examine emissions targets that ended in 2020 to investigate the final target outcomes, the transparency of target outcomes and potential consequences for missed emissions targets. A total of 1,041 firms had emissions targets ending in 2020, of which 88 (9%) failed and 320 (31%) disappeared. We find limited accountability and low awareness of the target outcomes. Only three of the failed firms are covered by the media. After a firm fails its 2020 emissions target, we do not observe significant market reaction, changes in media sentiment, environmental scores and environment-related shareholder proposals. In contrast, initial announcements of these 2020 emissions targets are rewarded with significant improvements in media sentiment and environmental scores. Our findings raise concerns for the accountability of emissions targets ending in 2030 and 2050. Companies have set emissions reduction targets globally, yet whether they are held accountable for the outcomes remains uncertain. By examining the emissions targets that ended in 2020, researchers find low awareness of the failed targets and limited negative reactions from different stakeholders.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"15 3","pages":"279-286"},"PeriodicalIF":29.6,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41558-024-02236-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142991013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Empty promises for emissions targets","authors":"Dragon Tang, Jiahang Zhang","doi":"10.1038/s41558-024-02239-0","DOIUrl":"10.1038/s41558-024-02239-0","url":null,"abstract":"Accountability serves as an adhesive that binds commitment to results. Now, a study on corporate carbon emissions targets reveals that firms hold limited accountability to their targets, with little public backlash against missed targets.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"15 3","pages":"244-245"},"PeriodicalIF":29.6,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142991012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}