Pulse Brain · Growing Health Evidence Index
Peer-reviewed

CO2 Removal With Enhanced Weathering and Ocean Alkalinity Enhancement: Potential Risks and Co-benefits for Marine Pelagic Ecosystems

Lennart T. Bach, Sophie Gill, Rosalind E. M. Rickaby, Sarah Gore, Phil Renforth

Frontiers in Climate · 2019

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Summary

<p>Humankind will need to remove hundreds of gigatons of carbon dioxide (CO<sub>2</sub>) from the atmosphere by the end of the twenty-first century to keep global warming below 2°C within the constraints of the global carbon budget. However, so far it is unclear if and how this could be achieved. A widely recognized idea is to accelerate weathering reactions of minerals that consume CO<sub>2</sub> when they dissolve. Acceleration could be realized by pulverizing and distributing gigatons of these minerals onto land (termed “enhanced weathering (EW)”) or sea (termed “ocean alkalinity enhancement (OAE)”) thereby largely increasing their reactive surfaces. However, the desired consumption of atmospheric CO<sub>2</sub> during dissolution would inevitab

Subject
Other / interdisciplinary
Source type
Peer-reviewed study
System type
Other
DOI
10.3389/fclim.2019.00007
Catalogue ID
SNmpc612ha-5tn50p
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