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Global carbon sequestration through continental chemical weathering in a climatic change context

Scientific reports, 2021-12, Vol.11 (1) [Peer Reviewed Journal]

Distributed under a Creative Commons Attribution 4.0 International License ;ISSN: 2045-2322 ;EISSN: 2045-2322 ;DOI: 10.1038/s41598-021-02891-y

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  • Title:
    Global carbon sequestration through continental chemical weathering in a climatic change context
  • Author: Lechuga-Crespo, Juan Luis ; Sauvage, Sabine ; Ruiz-Romera, Estilita ; van Vliet, Michelle ; Probst, Jean-Luc ; Fabre, Clément ; SANCHEZ PEREZ, José Miguel
  • Subjects: Environmental Sciences
  • Is Part Of: Scientific reports, 2021-12, Vol.11 (1)
  • Description: Abstract This study simulates carbon dioxide (CO 2 ) sequestration in 300 major world river basins (about 70% of global surface area) through carbonates dissolution and silicate hydrolysis. For each river basin, the daily timescale impacts under the RCP 2.6 and RCP 8.5 climate scenarios were assessed relative to a historical baseline (1969–1999) using a cascade of models accounting for the hydrological evolution under climate change scenarios. Here we show that the global temporal evolution of the CO 2 uptake presents a general increase in the annual amount of CO 2 consumed from 0.247 ± 0.045 Pg C year −1 to 0.261 and 0.273 ± 0.054 Pg C year −1 , respectively for RCP 2.6 and RCP 8.5. Despite showing a general increase in the global daily carbon sequestration, both climate scenarios show a decrease between June and August. Such projected changes have been mapped and evaluated against changes in hydrology, identifying hot spots and moments for the annual and seasonal periods.
  • Publisher: Nature Publishing Group
  • Language: English
  • Identifier: ISSN: 2045-2322
    EISSN: 2045-2322
    DOI: 10.1038/s41598-021-02891-y
  • Source: NCBI PubMed Central（免费）
    ProQuest Central
    DOAJ Directory of Open Access Journals
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