Marine carbon dioxide removal by alkalinization should no longer be overlooked
Katarzyna A Kowalczyk,
Thorben Amann,
Jessica Strefler
et al.
Abstract:To achieve the Paris climate target, deep emissions reductions have to be complemented with carbon dioxide removal (CDR). However, a portfolio of CDR options is necessary to reduce risks and potential negative side effects. Despite a large theoretical potential, ocean-based CDR such as ocean alkalinity enhancement (OAE) has been omitted in climate change mitigation scenarios so far. In this study, we provide a techno-economic assessment of large-scale OAE using hydrated lime (‘ocean liming’). We address key un… Show more
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