Pathways for marine carbon dioxide removal using electrochemical acid-base generation

Research over the past decade has resulted in various methods for removing CO2 from the atmosphere using seawater and electrochemically generated acids and bases. This Perspective aims to present a unified framework for comparing these approaches. Specifically, these methods can all be seen as falli...

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Main Author: Matthew D. Eisaman
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-04-01
Series:Frontiers in Climate
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fclim.2024.1349604/full
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author Matthew D. Eisaman
Matthew D. Eisaman
author_facet Matthew D. Eisaman
Matthew D. Eisaman
author_sort Matthew D. Eisaman
collection DOAJ
description Research over the past decade has resulted in various methods for removing CO2 from the atmosphere using seawater and electrochemically generated acids and bases. This Perspective aims to present a unified framework for comparing these approaches. Specifically, these methods can all be seen as falling into one of two categories: those that result in a net increase in ocean alkalinity and use the “ocean as a sponge” for atmospheric CO2 (ocean alkalinity enhancement, or OAE) and those that cycle ocean alkalinity and use the “ocean as a pump” for atmospheric CO2 (ocean alkalinity cycling, or OAC). In this Perspective, approaches for marine carbon dioxide removal (mCDR) using electrochemistry are compared using this framework, and the similarities and differences of these two categories are explored.
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spelling doaj.art-1704378c79ce4d938ea60843042db8092024-04-12T04:24:53ZengFrontiers Media S.A.Frontiers in Climate2624-95532024-04-01610.3389/fclim.2024.13496041349604Pathways for marine carbon dioxide removal using electrochemical acid-base generationMatthew D. Eisaman0Matthew D. Eisaman1Department of Earth and Planetary Sciences, Yale University, New Haven, CT, United StatesYale Center for Natural Carbon Capture, Yale University, New Haven, CT, United StatesResearch over the past decade has resulted in various methods for removing CO2 from the atmosphere using seawater and electrochemically generated acids and bases. This Perspective aims to present a unified framework for comparing these approaches. Specifically, these methods can all be seen as falling into one of two categories: those that result in a net increase in ocean alkalinity and use the “ocean as a sponge” for atmospheric CO2 (ocean alkalinity enhancement, or OAE) and those that cycle ocean alkalinity and use the “ocean as a pump” for atmospheric CO2 (ocean alkalinity cycling, or OAC). In this Perspective, approaches for marine carbon dioxide removal (mCDR) using electrochemistry are compared using this framework, and the similarities and differences of these two categories are explored.https://www.frontiersin.org/articles/10.3389/fclim.2024.1349604/fullcarbon dioxide removalnegative emissions technologiesmarine carbon dioxide removalocean carbon dioxide removalocean alkalinity enhancementindirect ocean capture
spellingShingle Matthew D. Eisaman
Matthew D. Eisaman
Pathways for marine carbon dioxide removal using electrochemical acid-base generation
Frontiers in Climate
carbon dioxide removal
negative emissions technologies
marine carbon dioxide removal
ocean carbon dioxide removal
ocean alkalinity enhancement
indirect ocean capture
title Pathways for marine carbon dioxide removal using electrochemical acid-base generation
title_full Pathways for marine carbon dioxide removal using electrochemical acid-base generation
title_fullStr Pathways for marine carbon dioxide removal using electrochemical acid-base generation
title_full_unstemmed Pathways for marine carbon dioxide removal using electrochemical acid-base generation
title_short Pathways for marine carbon dioxide removal using electrochemical acid-base generation
title_sort pathways for marine carbon dioxide removal using electrochemical acid base generation
topic carbon dioxide removal
negative emissions technologies
marine carbon dioxide removal
ocean carbon dioxide removal
ocean alkalinity enhancement
indirect ocean capture
url https://www.frontiersin.org/articles/10.3389/fclim.2024.1349604/full
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