TY - JOUR
T1 - Global carbon sequestration through continental chemical weathering in a climatic change context
AU - Lechuga-Crespo, Juan Luis
AU - Sauvage, Sabine
AU - Ruiz-Romera, Estilita
AU - van Vliet, Michelle T.H.
AU - Probst, Jean Luc
AU - Fabre, Clément
AU - Sánchez-Pérez, José Miguel
N1 - Funding Information:
Authors wish to thank the Basque Government (Hydro-Environmental Processes Consolidated Group, IT1029-16), the University of the Basque Country (UPV/EHU, UFI11/26), the Institut National Polytechnique de Toulouse (INPT) and the Centre National de la Recherche Scientifique (CNRS) for supporting this research.
Publisher Copyright:
© 2021, The Author(s).
PY - 2021/12
Y1 - 2021/12
N2 - This study simulates carbon dioxide (CO2) 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 CO2 uptake presents a general increase in the annual amount of CO2 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.
AB - This study simulates carbon dioxide (CO2) 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 CO2 uptake presents a general increase in the annual amount of CO2 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.
UR - http://www.scopus.com/inward/record.url?scp=85120932299&partnerID=8YFLogxK
U2 - 10.1038/s41598-021-02891-y
DO - 10.1038/s41598-021-02891-y
M3 - Article
C2 - 34880304
AN - SCOPUS:85120932299
SN - 2045-2322
VL - 11
SP - 1
EP - 8
JO - Scientific Reports
JF - Scientific Reports
IS - 1
M1 - 23588
ER -