Part 3 - References

1. Prentice, I. C. The carbon cycle and atmospheric carbon dioxide. Climate change 2001: the scientific basis, Intergovernmental panel on climate change. hal-03333974 (2001).

2. Sarmiento, J. L. & Gruber, N. Sinks for Anthropogenic Carbon. Phys Today 55, 30–36 (2002).

3. Quéré, C. L. et al. Trends in the sources and sinks of carbon dioxide. Nat Geosci 2, 831–836 (2009).

4. Doney, S. C., Fabry, V. J., Feely, R. A. & Kleypas, J. A. Ocean Acidification: The Other CO2 Problem. Mar Sci 1, 169–192 (2009).

5. Keller, D. P. et al. The Effects of Carbon Dioxide Removal on the Carbon Cycle. Curr Clim Change Reports 4, 250–265 (2018).

6. Sarmiento. Ocean Biogeochemical Dynamics. (2006).

7. Sabine, C. L. et al. The Oceanic Sink for Anthropogenic CO2. Science 305, 367–371 (2004).

8. Heinze, C. et al. The ocean carbon sink – impacts, vulnerabilities and challenges. Earth Syst Dynam 6, 327–358 (2015).

9. Krause-Jensen, D. et al. Sequestration of macroalgal carbon: the elephant in the Blue Carbon room. Biol Letters 14, 20180236 (2018).

10. Krause-Jensen, D. & Duarte, C. M. Substantial role of macroalgae in marine carbon sequestration. Nat Geosci 9, 737–742 (2016).

11. Gallagher, J. B., Shelamoff, V. & Layton, C. Seaweed ecosystems may not mitigate CO2 emissions. Ices J Mar Sci 79, fsac011 (2022).

12. Ricart, A. M. et al. Sinking seaweed in the deep ocean for carbon neutrality is ahead of science and beyond the ethics. Environ Res Lett 17, 081003 (2022).

13. Jones, D. C., Ito, T., Takano, Y. & Hsu, W. Spatial and seasonal variability of the air‐sea equilibration timescale of carbon dioxide. Global Biogeochem Cy 28, 1163–1178 (2014).

14. Gao, Y. et al. Dissolved organic carbon from cultured kelp Saccharina japonica: production, bioavailability, and bacterial degradation rates. Aquacult Env Interac 13, 101–110 (2021).

15. Rousselet, L., Cessi, P. & Forget, G. Coupling of the mid-depth and abyssal components of the global overturning circulation according to a state estimate. Sci Adv 7, (2021).

16. Siegel, D. A., DeVries, T., Doney, S. C. & Bell, T. Assessing the sequestration time scales of some ocean-based carbon dioxide reduction strategies. Environ Res Lett 16, 104003 (2021).

17. Burdige, D. J. Preservation of Organic Matter in Marine Sediments: Controls, Mechanisms, and an Imbalance in Sediment Organic Carbon Budgets? Cheminform 38, (2007).

18. Kandasamy, S. & Nath, B. N. Perspectives on the Terrestrial Organic Matter Transport and Burial along the Land-Deep Sea Continuum: Caveats in Our Understanding of Biogeochemical Processes and Future Needs. Frontiers Mar Sci 3, 259 (2016).

19. Campbell, J. S. et al. Geochemical Negative Emissions Technologies: Part I. Review. Frontiers Clim 4, 879133 (2022).

20. He, J. & Tyka, M. D. Limits and CO2 equilibration of near-coast alkalinity enhancement. Egusphere 2022, 1–26 (2022).