Global lake phytoplankton proliferation intensifies climate warming

Abstract In lakes, phytoplankton sequester atmospheric carbon dioxide (CO2) and store it in the form of biomass organic carbon (OC); however, only a small fraction of the OC remains buried, while the remaining part is recycled to the atmosphere as CO2 and methane (CH4). This has the potential effect...

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Main Authors: Wenqing Shi, Boqiang Qin, Qingji Zhang, Hans W. Paerl, Bryce Van Dam, Erik Jeppesen, Chenjun Zeng
Format: Article
Language:English
Published: Nature Portfolio 2024-12-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-024-54926-3
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author Wenqing Shi
Boqiang Qin
Qingji Zhang
Hans W. Paerl
Bryce Van Dam
Erik Jeppesen
Chenjun Zeng
author_facet Wenqing Shi
Boqiang Qin
Qingji Zhang
Hans W. Paerl
Bryce Van Dam
Erik Jeppesen
Chenjun Zeng
author_sort Wenqing Shi
collection DOAJ
description Abstract In lakes, phytoplankton sequester atmospheric carbon dioxide (CO2) and store it in the form of biomass organic carbon (OC); however, only a small fraction of the OC remains buried, while the remaining part is recycled to the atmosphere as CO2 and methane (CH4). This has the potential effect of adding CO2-equivalents (CO2-eq) to the atmosphere and producing a warming effect due to the higher radiative forcing of CH4 relative to CO2. Here we show a 3.1-fold increase in CO2-eq emissions over a 100-year horizon, with the effect increasing with global warming intensity. Climate warming has stimulated phytoplankton growth in many lakes worldwide, which, in turn, can feed back CO2-eq and create a positive feedback loop between them. In lakes where phytoplankton is negatively impacted by climate warming, the CO2-eq feedback capacity may diminish gradually with the ongoing climate warming.
format Article
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issn 2041-1723
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publishDate 2024-12-01
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series Nature Communications
spelling doaj-art-c6cdda33f03049c3bece8ab94db4c7232024-12-08T12:36:58ZengNature PortfolioNature Communications2041-17232024-12-011511610.1038/s41467-024-54926-3Global lake phytoplankton proliferation intensifies climate warmingWenqing Shi0Boqiang Qin1Qingji Zhang2Hans W. Paerl3Bryce Van Dam4Erik Jeppesen5Chenjun Zeng6Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring & Pollution Control, School of Environmental Science & Engineering, Nanjing University of Information Science & TechnologyTaihu Laboratory for Lake Ecosystem Research, State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of SciencesSchool of Geography and Ocean Science, Nanjing UniversityInstitute of Marine Sciences, University of North Carolina-Chapel HillInstitute of Carbon Cycles, Department of Fluxes across Interfaces, Helmholtz-Zentrum HereonDepartment of Ecoscience and Center for Water Technology, Aarhus UniversityGuangdong Research Institute of Water Resources and HydropowerAbstract In lakes, phytoplankton sequester atmospheric carbon dioxide (CO2) and store it in the form of biomass organic carbon (OC); however, only a small fraction of the OC remains buried, while the remaining part is recycled to the atmosphere as CO2 and methane (CH4). This has the potential effect of adding CO2-equivalents (CO2-eq) to the atmosphere and producing a warming effect due to the higher radiative forcing of CH4 relative to CO2. Here we show a 3.1-fold increase in CO2-eq emissions over a 100-year horizon, with the effect increasing with global warming intensity. Climate warming has stimulated phytoplankton growth in many lakes worldwide, which, in turn, can feed back CO2-eq and create a positive feedback loop between them. In lakes where phytoplankton is negatively impacted by climate warming, the CO2-eq feedback capacity may diminish gradually with the ongoing climate warming.https://doi.org/10.1038/s41467-024-54926-3
spellingShingle Wenqing Shi
Boqiang Qin
Qingji Zhang
Hans W. Paerl
Bryce Van Dam
Erik Jeppesen
Chenjun Zeng
Global lake phytoplankton proliferation intensifies climate warming
Nature Communications
title Global lake phytoplankton proliferation intensifies climate warming
title_full Global lake phytoplankton proliferation intensifies climate warming
title_fullStr Global lake phytoplankton proliferation intensifies climate warming
title_full_unstemmed Global lake phytoplankton proliferation intensifies climate warming
title_short Global lake phytoplankton proliferation intensifies climate warming
title_sort global lake phytoplankton proliferation intensifies climate warming
url https://doi.org/10.1038/s41467-024-54926-3
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