000118743 001__ 118743 000118743 005__ 20240319081024.0 000118743 0247_ $$2doi$$a10.1016/j.earscirev.2022.104055 000118743 0248_ $$2sideral$$a129690 000118743 037__ $$aART-2022-129690 000118743 041__ $$aeng 000118743 100__ $$aVicente-Serrano, S. 000118743 245__ $$aThe uncertain role of rising atmospheric CO2 on global plant transpiration 000118743 260__ $$c2022 000118743 5060_ $$aAccess copy available to the general public$$fUnrestricted 000118743 5203_ $$aAs CO2 concentration in the atmosphere rises, there is a need for improved physical understanding of its impact on global plant transpiration. This knowledge gap poses a major hurdle in robustly projecting changes in the global hydrologic cycle. For this reason, here we review the different processes by which atmospheric CO2 concentration affects plant transpiration, the several uncertainties related to the complex physiological and radiative processes involved, and the knowledge gaps which need to be filled in order to improve predictions of plant transpiration. Although there is a high degree of certainty that rising CO2 will impact plant transpiration, the exact nature of this impact remains unclear due to complex interactions between CO2 and climate, and key aspects of plant morphology and physiology. The interplay between these factors has substantial consequences not only for future climate and global vegetation, but also for water availability needed for sustaining the productivity of terrestrial ecosystems. Future changes in global plant transpiration in response to enhanced CO2 are expected to be driven by water availability, atmospheric evaporative demand, plant physiological processes, emergent plant disturbances related to increasing temperatures, and the modification of plant physiology and coverage. Considering the universal sensitivity of natural and agricultural systems to terrestrial water availability we argue that reliable future projections of transpiration is an issue of the highest priority, which can only be achieved by integrating monitoring and modeling efforts to improve the representation of CO2 effects on plant transpiration in the next generation of earth system models. © 2022 The Authors 000118743 536__ $$9info:eu-repo/grantAgreement/EC/H2020/715254/EU/Do droughts self-propagate and self-intensify?/DRY-2-DRY$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 715254-DRY-2-DRY$$9info:eu-repo/grantAgreement/EC/H2020/869550/EU/DOWN2EARTH: Translation of climate information into multilevel decision support for social adaptation, policy development, and resilience to water scarcity in the Horn of Africa Drylands/DOWN2EARTH$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 869550-DOWN2EARTH$$9info:eu-repo/grantAgreement/ES/MICINN/PID2019-108589RA-I00$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/CGL2017-82216-R$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/PCI2019-103631 000118743 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/ 000118743 590__ $$a12.1$$b2022 000118743 592__ $$a3.807$$b2022 000118743 591__ $$aGEOSCIENCES, MULTIDISCIPLINARY$$b5 / 202 = 0.025$$c2022$$dQ1$$eT1 000118743 593__ $$aEarth and Planetary Sciences (miscellaneous)$$c2022$$dQ1 000118743 594__ $$a20.0$$b2022 000118743 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000118743 700__ $$aMiralles, D. G. 000118743 700__ $$aMcDowell, N. 000118743 700__ $$aBrodribb, T. 000118743 700__ $$0(orcid)0000-0003-3085-7040$$aDomínguez-Castro, F. 000118743 700__ $$aLeung, R. 000118743 700__ $$aKoppa, A. 000118743 773__ $$g230 (2022), 104055-[16 pp]$$pEarth-sci. rev.$$tEarth-Science Reviews$$x0012-8252 000118743 8564_ $$s4081296$$uhttps://zaguan.unizar.es/record/118743/files/texto_completo.pdf$$yVersión publicada 000118743 8564_ $$s2561823$$uhttps://zaguan.unizar.es/record/118743/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000118743 909CO $$ooai:zaguan.unizar.es:118743$$particulos$$pdriver 000118743 951__ $$a2024-03-18-16:33:31 000118743 980__ $$aARTICLE