Canada's marine carbon sink: an early career perspective on the state of research and existing knowledge gaps

Improving our understanding of how the ocean absorbs carbon dioxide is critical to climate change mitigation efforts. We, a group of early career ocean professionals working in Canada, summarize current research and identify steps forward to improve our understanding of the marine carbon sink in Can...

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Bibliographic Details
Published in:FACETS
Main Authors: Duke, P.J., Richaud, B., Arruda, R., Länger, J., Schuler, K., Gooya, P., Ahmed, M.M.M., Miller, M.R., Braybrook, C.A., Kam, K., Piunno, R., Sezginer, Y., Nickoloff, G., Franco, A.C.
Other Authors: Kellett, Dawn
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 2023
Subjects:
Arctic
Canada
Pacific
Climate change
First Nations
Ocean acidification
Online Access:http://dx.doi.org/10.1139/facets-2022-0214
https://facetsjournal.com/doi/pdf/10.1139/facets-2022-0214
Description
Summary:Improving our understanding of how the ocean absorbs carbon dioxide is critical to climate change mitigation efforts. We, a group of early career ocean professionals working in Canada, summarize current research and identify steps forward to improve our understanding of the marine carbon sink in Canadian national and offshore waters. We have compiled an extensive collection of reported surface ocean air–sea carbon dioxide exchange values within each of Canada's three adjacent ocean basins. We review the current understanding of air–sea carbon fluxes and identify major challenges limiting our understanding in the Pacific, the Arctic, and the Atlantic Ocean. We focus on ways of reducing uncertainty to inform Canada's carbon stocktake, establish baselines for marine carbon dioxide removal projects, and support efforts to mitigate and adapt to ocean acidification. Future directions recommended by this group include investing in maturing and building capacity in the use of marine carbon sensors, improving ocean biogeochemical models fit-for-purpose in regional and ocean carbon dioxide removal applications, creating transparent and robust monitoring, verification, and reporting protocols for marine carbon dioxide removal, tailoring community-specific approaches to co-generate knowledge with First Nations, and advancing training opportunities for early career ocean professionals in marine carbon science and technology.

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