{"title":"Avoiding misuses of energy-economic modelling in climate policymaking","authors":"Noah Kaufman, Chris Bataille","doi":"10.1038/s41558-025-02280-7","DOIUrl":"https://doi.org/10.1038/s41558-025-02280-7","url":null,"abstract":"Energy-economic models are increasingly being used to inform climate mitigation policies. This Comment describes three situations where models misinform policymakers and calls for more iterative, policy-orientated modelling exercises that maximize learning in the pursuit of long-term emissions reductions goals.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"38 1","pages":""},"PeriodicalIF":30.7,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143582922","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":"Strength in collaboration","authors":"","doi":"10.1038/s41558-025-02298-x","DOIUrl":"10.1038/s41558-025-02298-x","url":null,"abstract":"The IPCC is in its seventh assessment cycle, and international collaboration, which established this organization, is still needed to ensure successful deliverables.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"15 3","pages":"227-227"},"PeriodicalIF":29.6,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41558-025-02298-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143583683","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}
Zhixin Zhang, Zhen Qian, Min Chen, Rui Zhu, Fan Zhang, Teng Zhong, Jian Lin, Liang Ning, Wei Xie, Felix Creutzig, Wenjun Tang, Laibao Liu, Jiachuan Yang, Ye Pu, Wenjia Cai, Yingxia Pu, Deer Liu, Hui Yang, Hongjun Su, Mingyue Lu, Fei Li, Xufeng Cui, Zhiwei Xie, Tianyu Sheng, Kai Zhang, Paolo Santi, Lixin Tian, Guonian Lü, Jinyue Yan
{"title":"Worldwide rooftop photovoltaic electricity generation may mitigate global warming","authors":"Zhixin Zhang, Zhen Qian, Min Chen, Rui Zhu, Fan Zhang, Teng Zhong, Jian Lin, Liang Ning, Wei Xie, Felix Creutzig, Wenjun Tang, Laibao Liu, Jiachuan Yang, Ye Pu, Wenjia Cai, Yingxia Pu, Deer Liu, Hui Yang, Hongjun Su, Mingyue Lu, Fei Li, Xufeng Cui, Zhiwei Xie, Tianyu Sheng, Kai Zhang, Paolo Santi, Lixin Tian, Guonian Lü, Jinyue Yan","doi":"10.1038/s41558-025-02276-3","DOIUrl":"10.1038/s41558-025-02276-3","url":null,"abstract":"Rooftop photovoltaic (RPV) is often understood as a niche contribution to climate change mitigation. However, the global potential of RPVs to mitigate global warming is unknown. Here we map the global rooftop area at 1-km resolution, quantifying 286,393 km2 of rooftops worldwide through geospatial data mining and artificial intelligence techniques. Using nine advanced Earth system models from the coupled model intercomparison project phase 6, we reveal that RPVs could substantially contribute to reducing global temperatures by 0.05–0.13 °C before 2050. Region-specific analysis underscores the variability in RPV potential and the necessity of tailored approaches to optimize RPV deployment, considering local solar resources, existing infrastructure and grid carbon intensity. Our findings reveal that leveraging RPV systems offers a viable and impactful strategy for reducing carbon footprints and combating climate change globally, while advocating targeted interventions to enhance the benefits of RPVs, particularly in areas with high solar radiation or rapid urbanization. Rooftop photovoltaic systems are often seen as a niche solution for mitigation but could offer large-scale opportunities. Using multi-source geospatial data and artificial intelligence techniques, the authors map their potential for reducing global temperatures and analyse regional differences.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"15 4","pages":"393-402"},"PeriodicalIF":29.6,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41558-025-02276-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143569406","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":"The role of non-state actors in shaping UN climate change side event discussions","authors":"","doi":"10.1038/s41558-025-02255-8","DOIUrl":"10.1038/s41558-025-02255-8","url":null,"abstract":"How discussions around key climate change topics evolve over time and which organizations drive such change are important questions. We found that business non-governmental organizations affiliated with fossil fuels focus on hosting renewable energy events but remain absent from anti-fossil-fuel discussions, led instead by a tightly connected network of environmental non-governmental organizations.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"15 3","pages":"250-251"},"PeriodicalIF":29.6,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143560647","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}
Loan Diep, Samuel Godfrey, Farai Tunhuma, Luiza C. Campos, Monica Lakhanpaul, Priti Parikh
{"title":"Cascading impacts of climate change on child survival and health in Africa","authors":"Loan Diep, Samuel Godfrey, Farai Tunhuma, Luiza C. Campos, Monica Lakhanpaul, Priti Parikh","doi":"10.1038/s41558-024-02197-7","DOIUrl":"10.1038/s41558-024-02197-7","url":null,"abstract":"Children will bear some of the heaviest burdens of climate change, putting their survival and health at risk. Our Perspective underlines some of the critical routes through which climate change and its interactions with underlying factors of vulnerability affect children in Africa. We highlight the role of non-climatic factors or ‘socio-political stratifiers’ (poverty, housing conditions, conflicts and violence, displacement and migration) in increasing risks and reinforcing inequalities. We propose three priority areas of action to break vulnerability cycles and protect children: child-centred plans and policies that recognize children as rights bearers and agents of change; financial support for climate action for children; and climate-smart public facilities such as schools and health centres that can continually provide basic services. Children will bear considerable burdens of climate change, particularly where impacts intersect with pre-existing vulnerabilities. In this Perspective, the authors highlight how climate factors and socio-political stratifiers increase children’s risks in Africa and propose action to break vulnerability cycles.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"15 3","pages":"254-261"},"PeriodicalIF":29.6,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143538330","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}
Yuxuan Lin, Yuxin Chen, Xin Liu, Xin Lin, Edward A. Laws, Yuntao Zhou, Zhiyuan Xiang, Xinyi Zhang, Zhixue Chen, Yi Li, Yonglong Lu
{"title":"Climate-driven connectivity loss impedes species adaptation to warming in the deep ocean","authors":"Yuxuan Lin, Yuxin Chen, Xin Liu, Xin Lin, Edward A. Laws, Yuntao Zhou, Zhiyuan Xiang, Xinyi Zhang, Zhixue Chen, Yi Li, Yonglong Lu","doi":"10.1038/s41558-025-02256-7","DOIUrl":"10.1038/s41558-025-02256-7","url":null,"abstract":"Marine life are expected to have fewer thermal barriers restricting their movement to adjacent habitats than terrestrial species do. However, it remains unknown how this warming-induced connectivity loss varies in different ocean strata, limiting the predictability of warming impacts on biodiversity in the whole ocean. Here, we developed a climate connectivity framework across seascape strata under different climate change scenarios, which combines thermal gradient, human impacts and species tolerance thresholds. We show that warming may lead to connectivity loss, with its magnitude increasing with depth. Connectivity loss is projected to increase rapidly in 2050, particularly in deep strata, and may impair the movement capacity of deep-sea phyla in adapting to warming. With the compression of habitat ranges, over one-quarter of deep-sea species inhabit areas that may experience disrupted connectivity, threatening the maintenance of deep-sea biodiversity. Our results highlight the challenges that climate change poses to biodiversity conservation through disruption of deep-sea connectivity. The authors demonstrate that warming will reduce connectivity for ocean species, potentially limiting their capacity to adapt to warming through habitat shifts. The results show particularly strong losses of connectivity in deeper ocean strata, affecting 95% of abyssopelagic species.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"15 3","pages":"315-320"},"PeriodicalIF":29.6,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143538489","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}