Zakia Sultana, Heleen L. P. Mees, Bishawjit Mallick, Ilan Kelman, J. Magnolia Gilligan, Brianna Castro, Shanawez Hossain, Peter P. J. Driessen, Ajay Bailey
{"title":"Bringing justice to informal adaptation to heat stress","authors":"Zakia Sultana, Heleen L. P. Mees, Bishawjit Mallick, Ilan Kelman, J. Magnolia Gilligan, Brianna Castro, Shanawez Hossain, Peter P. J. Driessen, Ajay Bailey","doi":"10.1038/s41558-026-02728-4","DOIUrl":"10.1038/s41558-026-02728-4","url":null,"abstract":"Informal adaptation can augment or replace formal adaptation with flexible and responsive actions, yet it can also reproduce and intensify existing injustices. We propose justice-oriented co-creation between informal and formal actions as a pathway for effective heat adaptation.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"16 9","pages":"1005-1008"},"PeriodicalIF":26.9,"publicationDate":"2026-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148872202","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}
Michaela Werning, Edward Byers, Marina Andrijevic, Carl-Friedrich Schleussner, Seth Monteith, Laura Aldrete Lopez, Valentin Lemaire, Elin Matsumae, Adelle Thomas, Alexander Nauels
{"title":"A climate impact taxonomy operationalizing IPCC physical driver and risk concepts","authors":"Michaela Werning, Edward Byers, Marina Andrijevic, Carl-Friedrich Schleussner, Seth Monteith, Laura Aldrete Lopez, Valentin Lemaire, Elin Matsumae, Adelle Thomas, Alexander Nauels","doi":"10.1038/s41558-026-02717-7","DOIUrl":"10.1038/s41558-026-02717-7","url":null,"abstract":"Strengthening the connection between physical climate science and adaptation communities is essential for producing actionable, integrated risk information. Here we present a climate impact taxonomy linking 35 climatic impact-drivers to 8 representative key risks, with metadata on climate impact characteristics, relevant subsystems and adaptation–mitigation linkages. This prototype taxonomy enables researchers, practitioners and policymakers to develop adaptation strategies and direct support towards the most urgent, evidence-based priorities across IPCC-aligned dimensions. Adaptation to climate risks requires integrating knowledge across IPCC working groups. This study presents a climate impact taxonomy that connects climatic impact-drivers from Working Group I to representative key risks from Working Group II and provides more direct guidance for risk assessment and adaptation strategies.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"16 9","pages":"1032-1036"},"PeriodicalIF":26.9,"publicationDate":"2026-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41558-026-02717-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148769368","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":"Cities need robust carbon dioxide removal strategies to meet net-zero targets","authors":"Giulia Ulpiani, Quirina Rodriguez Mendez, Valeria Todeschi, Gema Hernandez Moral, Nadja Vetters, Marco Pittalis, Sabine Fuss, Christiaan Gevers Deynoot, Felix Creutzig","doi":"10.1038/s41558-026-02676-z","DOIUrl":"10.1038/s41558-026-02676-z","url":null,"abstract":"Leading European cities race to reach net-zero emissions, but residual emissions are tied to easier-to-abate sectors and temporary, land-intensive carbon removal for compensation. To keep climate neutrality credible and fair, policy must tighten expectations on cutting emissions and set clear rules for carbon removal and credits.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"16 9","pages":"1016-1017"},"PeriodicalIF":26.9,"publicationDate":"2026-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41558-026-02676-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148872209","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}
Jian Wang, Yuyu Zhou, Lingli Liu, Constantin M. Zohner, Jing Wei, Chaoyang Wu
{"title":"Particulate air pollution undermines plant water-use efficiency by inhibiting photosynthesis","authors":"Jian Wang, Yuyu Zhou, Lingli Liu, Constantin M. Zohner, Jing Wei, Chaoyang Wu","doi":"10.1038/s41558-026-02712-y","DOIUrl":"10.1038/s41558-026-02712-y","url":null,"abstract":"Rising atmospheric CO2 and climate change have generally enhanced plant water-use efficiency (WUE), yet the influence of fine particulate pollution (PM2.5) on this carbon–water coupling remains poorly understood. Drawing on a global database of tree-ring isotopes, eddy-covariance fluxes and satellite-derived vegetation metrics, here we show that PM2.5 exerts a predominantly negative influence on WUE across spatial scales. The magnitude of this effect varies geographically and is modulated by interactions among vegetation traits, pollution levels and climate, with forests and non-forests exhibiting distinct patterns. The WUE decline arises primarily from the PM2.5-induced suppression of photosynthesis rather than changes in evapotranspiration, due to reduced photosynthetically active radiation and carboxylation capacity. Current ecosystem models that omit aerosol processes fail to reproduce the observed PM2.5–WUE relation, which indicates that covarying climate drivers alone are insufficient to explain this effect. Our findings identify PM2.5 as an overlooked yet critical factor that weakens plant carbon–water coupling under climate change. The influence of fine particulate pollution (PM2.5) on plant water-use efficiency remains poorly understood. The authors highlight that PM2.5 exerts a primarily negative effect across scales due to asymmetric effects on photosynthesis and evapotranspiration.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"16 9","pages":"1068-1074"},"PeriodicalIF":26.9,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148769151","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":"Empirical insights into residual emissions in urban net-zero targets","authors":"Giulia Ulpiani, Quirina Rodriguez Mendez, Valeria Todeschi, Gema Hernandez Moral, Nadja Vetters, Marco Pittalis, Sabine Fuss, Christiaan Gevers Deynoot, Felix Creutzig","doi":"10.1038/s41558-026-02691-0","DOIUrl":"10.1038/s41558-026-02691-0","url":null,"abstract":"Cities increasingly pledge net-zero emissions targets, but the robustness of their residual emissions strategies remains uncertain. We examine the approaches of 103 European cities aiming at net zero by 2030. Total residual emissions are 61.4 MtCO2e originating mostly from buildings and transport, with the median at 0.8 tCO2e per capita, indicating a rapid decarbonization process. All municipal strategies rely on temporary, land-based CO2 removal, then carbon credits (40%) and permanent CO2 removal (32%). We develop the residual emissions strategy robustness index to assess the robustness of compensation strategies, indicating that the current maturity is medium-low with notable geographical disparities. Although cities invest in options mapping and governance, little attention is paid to land availability, the potential of the urban fabric to become a distributed carbon sink, provisions against carbon reversals, monitoring, timing and quantification (estimates cover only 18% of total residual emissions). We also distil recommendations and best practices to address residual emissions. Although many cities have set net-zero targets, there is limited understanding of their residual emissions strategies. An analysis of 103 European cities reveals best practices but also a potential over-reliance on temporary land-based carbon removal and the limited robustness of compensation strategies.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"16 9","pages":"1092-1101"},"PeriodicalIF":26.9,"publicationDate":"2026-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41558-026-02691-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148729007","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":"Failure to track a stable AMOC state under rapid climate change","authors":"René M. van Westen, Reyk Börner, Henk A. Dijkstra","doi":"10.1038/s41558-026-02730-w","DOIUrl":"https://doi.org/10.1038/s41558-026-02730-w","url":null,"abstract":"The Atlantic Meridional Overturning Circulation (AMOC), a tipping element of the climate system, currently has an estimated global warming threshold for collapse of +4.0 °C (uncertainty range 1.4–8 °C). However, such a threshold may not be meaningful because AMOC stability depends on the rate of radiative forcing change, not a set temperature. Here we identify an AMOC stabilizing mechanism that operates on timescales slower than present-day warming rates. Slow forcing permits coherent adjustment of surface and interior ocean properties, supported by enhanced evaporation and reduced sea-ice extent, counteracting destabilizing feedbacks. Using a slow CO2 ramp (+0.5 ppm yr−1) climate model simulation, we explicitly demonstrate the AMOC remains stable up to +5.5 °C of global warming. By contrast, under faster CO2 ramps, the AMOC collapses at substantially lower warming levels (+2 °C). Our findings demonstrate rate-induced AMOC tipping and imply that limiting the rate of emissions is critical for reducing the risk of an AMOC collapse.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"5 1","pages":""},"PeriodicalIF":30.7,"publicationDate":"2026-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148729011","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}
Weilin Liao, Xuanzong Zhang, Xiaoping Liu, Ming Luo, Yang Chen, Duo Chan, Wenfeng Zhan, Yimin Chen, Guangzhao Chen, Rouyan Gong, Lei Zhao
{"title":"Globally and intergenerationally unequal exposure to hourly heat extremes","authors":"Weilin Liao, Xuanzong Zhang, Xiaoping Liu, Ming Luo, Yang Chen, Duo Chan, Wenfeng Zhan, Yimin Chen, Guangzhao Chen, Rouyan Gong, Lei Zhao","doi":"10.1038/s41558-026-02724-8","DOIUrl":"10.1038/s41558-026-02724-8","url":null,"abstract":"Heat extremes are intensifying under climate change, yet these events are traditionally identified using daily temperature metrics, which fail to capture the full dynamics of heat events. Here we present a global assessment of hourly heat extremes (HHEs) in summer, and show that HHEs are emerging worldwide and exhibit marked unequal exposure across regions and generations. Under a high-emissions scenario, global HHEs are projected to increase fourfold and their population exposure to grow sixfold by late century. Each hot day will gain about four hot hours, and a further three hot hours will occur on non-hot days, which daily metrics overlook. Low- and middle-income countries bear more than three-quarters of the current and future heat exposure, and successive generations, particularly in low-income countries, face much higher lifetime exposure than earlier cohorts. These findings underscore the urgent need for hourly-scale risk assessments, public preparedness and designing equitable strategies in a warming world. The authors quantify the global emergence of hourly heat extremes (HHEs), highlighting exposure overlooked by daily metrics. HHEs will increase fourfold by the end of the century under high emissions, with low- and middle-income countries, as well as successive generations, facing disproportionate exposure.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"16 9","pages":"1045-1052"},"PeriodicalIF":26.9,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148729013","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}
Xianliang Zhang (, ), Hongyan Liu (, ), Rubén D. Manzanedo, Justin T. Maxwell, Loïc D’Orangeville, Mingchao Du (, ), Tim Rademacher
{"title":"Hydraulic traits govern opposing range shifts of montane trees under warming","authors":"Xianliang Zhang \u0000 (, ), Hongyan Liu \u0000 (, ), Rubén D. Manzanedo, Justin T. Maxwell, Loïc D’Orangeville, Mingchao Du \u0000 (, ), Tim Rademacher","doi":"10.1038/s41558-026-02726-6","DOIUrl":"10.1038/s41558-026-02726-6","url":null,"abstract":"Montane tree species are undergoing accelerated elevational range shifts in response to climate warming, yet the mechanisms driving interspecific variation remain elusive. Here we show that hydraulic traits predict opposing biogeographic responses of montane trees to warming and drought. By integrating hemispheric-scale dendrochronological records from 45 species (121,743 individuals), global observations of elevational range shifts from 102 species and hydraulic trait data for 11 functional attributes, we demonstrate that climate-sensitive species tended to rapidly track warming into higher elevations, whereas taxa resistant to these stresses were poised to have expanded downslope. In addition, elevational dependencies in drought sensitivity changed over time for nearly one-third of the species, revealing dynamic reorganization of climate–growth relationships across mountain gradients. These findings establish leaf- and stem-level hydraulic traits as a fundamental predictor of range dynamics, providing a mechanistic basis for forecasting the reorganization of montane forests under continued climate change. The authors integrate dendrochronological records with range shifts to show that shifts in montane tree species are tightly linked to tree hydraulic properties. While climate-sensitive species track warming to higher elevations, stress-resistant species expand downslope.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"16 9","pages":"1084-1091"},"PeriodicalIF":26.9,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148693572","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}
Eike E. Köhn, Lester Kwiatkowski, Juliette Mignot, Guillaume Gastineau, Olivier Torres, James C. Orr
{"title":"Persistence of Arctic Ocean acidification under negative emissions","authors":"Eike E. Köhn, Lester Kwiatkowski, Juliette Mignot, Guillaume Gastineau, Olivier Torres, James C. Orr","doi":"10.1038/s41558-026-02715-9","DOIUrl":"10.1038/s41558-026-02715-9","url":null,"abstract":"Although net negative emissions of carbon dioxide (CO2) are essential to meet climate targets, little is known about how declining atmospheric CO2 levels will affect ocean acidification. Here, by analysing the acidity ([H+]) and corrosivity to aragonite (ΩArag) in eight Earth system models that made simulations under rising then falling CO2 levels, we identify the Arctic as a hotspot for delayed reversibility of ocean acidification. Under falling CO2, Arctic surface waters remain comparatively more acidic, and aragonite-corrosive conditions (ΩArag < 1) persist until atmospheric CO2 drops ~120 ppm below the threshold at which they first appeared under rising CO2. This hysteresis arises from the erosion of the natural surface-layer deficit in dissolved inorganic carbon, initially maintained by sea ice limiting air–sea gas exchange and not fully restored as sea ice recovers during CO2 decline. Thus, the Arctic Ocean experiences not only the greatest acidification but also the most delayed benefits from negative emissions. Changes in the Earth system may persist long after atmospheric CO2 levels decline. This study examines ocean acidification and how it will persist in ocean regions globally, with the Arctic identified as the area that experiences relief from acidification the latest under negative emissions.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"16 9","pages":"1053-1060"},"PeriodicalIF":26.9,"publicationDate":"2026-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41558-026-02715-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148693589","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":"Social influence shapes climate attitudes and action","authors":"Sam Hampton, Briony Latter, Lorraine Whitmarsh","doi":"10.1038/s41558-026-02711-z","DOIUrl":"10.1038/s41558-026-02711-z","url":null,"abstract":"Social influence, which refers to how individuals and groups shape others’ attitudes and actions, plays a central role in encouraging climate-related behaviours. Here we synthesize insights from climate communication, social psychology and behavioural science to organize current evidence on how influence operates in the context of climate action. We structure this synthesis around four interacting dimensions: who is influencing, where influence is directed, how it occurs and which behaviours are targeted. Across these dimensions, we highlight strengths and gaps in the evidence, including the roles of different actors, modes of influence, and audience characteristics. We identify key priorities for future research, particularly the need to better understand how these elements interact in real-world contexts to support sustained climate action. Individuals and groups shape others’ attitudes and actions through social influence. This Perspective articulates a research agenda of social influence for climate action, synthesizes existing evidence and highlights its practical relevance for designing effective behavioural interventions.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":"16 8","pages":"889-896"},"PeriodicalIF":26.9,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667560","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}