State-of-the-art global models underestimate impacts from climate extremes.

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ID: 62326
2019
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Abstract
Global impact models represent process-level understanding of how natural and human systems may be affected by climate change. Their projections are used in integrated assessments of climate change. Here we test, for the first time, systematically across many important systems, how well such impact models capture the impacts of extreme climate conditions. Using the 2003 European heat wave and drought as a historical analogue for comparable events in the future, we find that a majority of models underestimate the extremeness of impacts in important sectors such as agriculture, terrestrial ecosystems, and heat-related human mortality, while impacts on water resources and hydropower are overestimated in some river basins; and the spread across models is often large. This has important implications for economic assessments of climate change impacts that rely on these models. It also means that societal risks from future extreme events may be greater than previously thought.
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schewe2019stateoftheartnature Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Schewe, Jacob;Gosling, Simon N;Reyer, Christopher;Zhao, Fang;Ciais, Philippe;Elliott, Joshua;Francois, Louis;Huber, Veronika;Lotze, Heike K;Seneviratne, Sonia I;van Vliet, Michelle T H;Vautard, Robert;Wada, Yoshihide;Breuer, Lutz;Büchner, Matthias;Carozza, David A;Chang, Jinfeng;Coll, Marta;Deryng, Delphine;de Wit, Allard;Eddy, Tyler D;Folberth, Christian;Frieler, Katja;Friend, Andrew D;Gerten, Dieter;Gudmundsson, Lukas;Hanasaki, Naota;Ito, Akihiko;Khabarov, Nikolay;Kim, Hyungjun;Lawrence, Peter;Morfopoulos, Catherine;Müller, Christoph;Müller Schmied, Hannes;Orth, René;Ostberg, Sebastian;Pokhrel, Yadu;Pugh, Thomas A M;Sakurai, Gen;Satoh, Yusuke;Schmid, Erwin;Stacke, Tobias;Steenbeek, Jeroen;Steinkamp, Jörg;Tang, Qiuhong;Tian, Hanqin;Tittensor, Derek P;Volkholz, Jan;Wang, Xuhui;Warszawski, Lila;
Journal Nature communications
Year 2019
DOI
10.1038/s41467-019-08745-6
URL
Keywords
biomass temperature energy balance carbon dioxide photosynthesis transpiration agronomic practices carbon dioxide–analysis

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