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Attribution of global lake systems change to anthropogenic forcing

  • Luke Grant*
  • , Inne Vanderkelen
  • , Lukas Gudmundsson
  • , Zeli Tan
  • , Marjorie Perroud
  • , Victor M. Stepanenko
  • , Andrey V. Debolskiy
  • , Bram Droppers
  • , Annette B.G. Janssen
  • , R. Iestyn Woolway
  • , Margarita Choulga
  • , Gianpaolo Balsamo
  • , Georgiy Kirillin
  • , Jacob Schewe
  • , Fang Zhao
  • , Iliusi Vega del Valle
  • , Malgorzata Golub
  • , Don Pierson
  • , Rafael Marcé
  • , Sonia I. Seneviratne
  • Wim Thiery
*Corresponding author for this work
  • Department of Hydrology and Hydraulic Engineering
  • Vrije Universiteit Brussel
  • Swiss Federal Institute of Technology Zurich
  • Pacific Northwest National Laboratory
  • Institute for Environmental Sciences
  • University of Geneva
  • Lomonosov Moscow State University
  • Moscow Center for Fundamental and Applied Mathematics
  • Russian Academy of Sciences
  • Wageningen University & Research
  • European Space Agency Climate Office
  • ECSAT
  • Research Department
  • European Centre for Medium-Range Weather Forecasts
  • Leibniz-Institute of Freshwater Ecology and Inland Fisheries
  • Potsdam Institute for Climate Impact Research
  • Department of Ecology and Genetics
  • Uppsala University
  • Catalan Institute for Water Research
  • University of Girona

Research output: Contribution to journal › Article › peer-review

Abstract

Lake ecosystems are jeopardized by the impacts of climate change on ice seasonality and water temperatures. Yet historical simulations have not been used to formally attribute changes in lake ice and temperature to anthropogenic drivers. In addition, future projections of these properties are limited to individual lakes or global simulations from single lake models. Here we uncover the human imprint on lakes worldwide using hindcasts and projections from five lake models. Reanalysed trends in lake temperature and ice cover in recent decades are extremely unlikely to be explained by pre-industrial climate variability alone. Ice-cover trends in reanalysis are consistent with lake model simulations under historical conditions, providing attribution of lake changes to anthropogenic climate change. Moreover, lake temperature, ice thickness and duration scale robustly with global mean air temperature across future climate scenarios (+0.9 °C °Cair–1, –0.033 m °Cair–1 and –9.7 d °Cair–1, respectively). These impacts would profoundly alter the functioning of lake ecosystems and the services they provide.

Original languageEnglish
Pages (from-to)849-854
Number of pages6
JournalNature Geoscience
Volume14
Issue number11
DOIs
StatePublished - Nov 2021
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 13 - Climate Action
    SDG 13 Climate Action

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