{
  "abstract": "Peatlands store one-third of the global soil carbon (C) on only ∼3% of Earth's land surface but risk becoming C sources to accelerate climate change due to warming-induced C loss. Elevated CO₂ (eCO₂) may mitigate this loss by boosting plant C uptake. However, how eCO₂ and climate warming interact to influence peatland C dynamics remains unclear. Here, we investigated peatland C fate at five warming levels (+0°, +2.25°, +4.5°, +6.75°, and + 9°C), each under ambient CO₂ (aCO₂) and eCO₂ (+500 parts per million), by model-guided synthesis of 18 measured variables for each of the 10 treatments from an experiment. Our results showed that the peatland C loss increased with warming at a rate of 62.6 g C m⁻² year⁻¹°C⁻¹, reaching 476.5 ± 104.7 g C m⁻² year⁻¹ at +9°C under aCO₂, primarily because of increased Sphagnum mortality and accelerated decomposition. eCO₂ reduced the loss rate to 17.3 g C m⁻² year⁻¹°C⁻¹, nearly halving the C loss at +9°C (269.4 ± 80.5 g C m⁻² year⁻¹), mainly due to enhanced tree and shrub growth. Methane emissions increased with warming, similarly under aCO₂ and eCO₂. Our findings suggest that northern peatlands likely become major C sources under climate warming, although rising atmospheric CO₂ concentration may partially slow down the C loss. Climate-driven shifts in plant community structure, rather than peat decomposition alone, play a critical role in regulating peatland C fate and may threaten the stability of peatland ecosystem functions and services in the future.",
  "abstract_shown": true,
  "affiliations": [
    "Soil and Crop Sciences Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, USA.",
    "Department of Ecology, Evolution, and Organismal Biology, Iowa State University, Ames, IA, USA.",
    "Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA.",
    "Department of Biology, West Virginia University, Morgantown, WV, USA.",
    "Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN, USA.",
    "Institue for Earth System Science & Remote Sensing, Leipzig University, Leipzig, Germany.",
    "Division of Plant Science, Research School of Biology, The Australian National University, Canberra, Australia.",
    "Department of Biology, The University of Western Ontario, London, ON, Canada.",
    "Nicholas School of the Environment, Duke University, Durham, NC, USA.",
    "Department of Environmental Systems Science, ETH Zurich, Zurich, Switzerland.",
    "College of Information Sciences and Technology, Pennsylvania State University, University Park, PA, USA.",
    "Institute of Energy and the Environment, Pennsylvania State University, University Park, PA, USA."
  ],
  "article_type": "Research Article",
  "arxiv": null,
  "author_total": 22,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Jian Zhou",
      "orcid": "0000-0001-9276-6086"
    },
    {
      "affs": [
        0
      ],
      "name": "Quan Quan",
      "orcid": "0000-0002-8202-6858"
    },
    {
      "affs": [
        1
      ],
      "name": "Wenjuan Huang",
      "orcid": "0000-0003-1038-1591"
    },
    {
      "affs": [
        2
      ],
      "name": "Paul J. Hanson",
      "orcid": "0000-0001-7293-3561"
    },
    {
      "affs": [
        2
      ],
      "name": "Daniel Ricciuto",
      "orcid": "0000-0002-3668-3021"
    },
    {
      "affs": [
        2
      ],
      "name": "Melanie A. Mayes",
      "orcid": "0000-0001-6368-9210"
    },
    {
      "affs": [
        2
      ],
      "name": "Natalie A. Griffiths",
      "orcid": "0000-0003-0068-7714"
    },
    {
      "affs": [
        2
      ],
      "name": "Verity G. Salmon",
      "orcid": "0000-0002-2188-551X"
    },
    {
      "affs": [
        2,
        3
      ],
      "name": "Sören Eliot Weber",
      "orcid": "0000-0002-6351-5365"
    },
    {
      "affs": [
        2
      ],
      "name": "Jeffrey M. Warren",
      "orcid": "0000-0002-0680-4697"
    },
    {
      "affs": [
        2,
        4
      ],
      "name": "Richard J. Norby",
      "orcid": "0000-0002-0238-9828"
    },
    {
      "affs": [
        5
      ],
      "name": "Mara Y. McPartland",
      "orcid": "0000-0002-1242-0438"
    },
    {
      "affs": [
        6
      ],
      "name": "Mirindi Eric Dusenge",
      "orcid": "0000-0003-4218-0911"
    },
    {
      "affs": [
        6,
        7,
        8
      ],
      "name": "Danielle Way",
      "orcid": "0000-0003-4801-5319"
    },
    {
      "affs": [
        0
      ],
      "name": "Lifen Jiang",
      "orcid": "0000-0002-1546-8189"
    },
    {
      "affs": [
        9
      ],
      "name": "Yu Zhou",
      "orcid": "0000-0002-5544-8342"
    },
    {
      "affs": [
        0
      ],
      "name": "Haodi Xu",
      "orcid": "0000-0003-3839-7202"
    },
    {
      "affs": [
        10,
        11
      ],
      "name": "Feng Tao",
      "orcid": "0000-0001-6105-860X"
    },
    {
      "affs": [
        2
      ],
      "name": "Xiaoying Shi"
    },
    {
      "affs": [
        0
      ],
      "name": "Weinan Chen",
      "orcid": "0000-0003-0227-4454"
    },
    {
      "affs": [
        0
      ],
      "name": "Yahai Zhang",
      "orcid": "0000-0001-9134-0964"
    },
    {
      "affs": [
        0
      ],
      "name": "Yiqi Luo",
      "orcid": "0000-0002-4556-0218"
    }
  ],
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  "cited_by": 0,
  "doi": "10.1126/sciadv.aek1491",
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    "2375-2548"
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  "language": "eng",
  "licence": "CC-BY-NC",
  "licence_label": "CC BY-NC",
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  "licence_url": "https://creativecommons.org/licenses/by-nc/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "heading",
      "Earth, Environmental, Ecological, and Space Sciences"
    ],
    [
      "heading",
      "Ecology"
    ],
    [
      "heading",
      "Plant Sciences"
    ],
    [
      "heading",
      "Research Article"
    ],
    [
      "heading",
      "SciAdv r-articles"
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  "openalex": null,
  "pdf_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13721999/pdf/?tool=EBI",
  "pmcid": "PMC13721999",
  "pmid": "42962038",
  "published": "2026-10-30",
  "publisher": "American Association for the Advancement of Science (AAAS)",
  "ris": "https://research.draconitic.com/paper/4gv7s5p2qkwy1.ris",
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  "subjects": [
    {
      "field": "biology",
      "origin": "heading:Ecology",
      "subfield": "ecology"
    },
    {
      "field": "biology",
      "origin": "heading:Plant Sciences",
      "subfield": "plant-biology"
    }
  ],
  "title": "Elevated CO2 mitigated warming-enhanced carbon loss from northern peatland",
  "title_text": "Elevated CO2 mitigated warming-enhanced carbon loss from northern peatland",
  "type": "peer-reviewed",
  "updated_at": "2026-11-03T12:22:35Z",
  "url": "https://research.draconitic.com/paper/4gv7s5p2qkwy1",
  "venue": "Science Advances",
  "versions": []
}