Publication Date
6-20-2025
Document Type
Article
Publication Title
Science Advances
Volume
11
Issue
25
DOI
10.1126/sciadv.adr7250
Abstract
Calcium carbonate dissolution is the dominant negative feedback in the ocean for neutralizing the acidity from rising atmospheric carbon dioxide. Mimicking this natural process, the accelerated weathering of limestone (AWL) can store carbon as bicarbonate in the ocean for tens of thousands of years. Here, we evaluate the potential of AWL on ships as a carbon sequestration approach. We show a successful prediction of laboratory measurements using a model that includes the most recent calcite dissolution kinetics in seawater. When simulated along a Pacific shipping lane in the Estimating the Circulation and Climate of the Ocean–Darwin ocean–general circulation model, surface alkalinity and dissolved inorganic carbon increase by <1.4% after 10 years of continuous operation, leaving a small pH and partial pressure of carbon dioxide impact to the ocean while reducing 50% carbon dioxide emission in maritime transportation.
Funding Number
BK20241219
Funding Sponsor
National Aeronautics and Space Administration
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 License
Department
Moss Landing Marine Laboratories
Recommended Citation
Sijia Dong, William M. Berelson, Pierre Forin, Melissa Gutierrez, Dustin Carroll, Dimitris Menemenlis, Albert Y. Kyi, and Jess F. Adkins. "Potential of CO2 sequestration through accelerated weathering of limestone on ships" Science Advances (2025). https://doi.org/10.1126/sciadv.adr7250
