Toward a consensus framework to evaluate air–sea CO2 equilibration for marine CO2 removal.

(D) Eastern Australia near Brisbane. gl Tracing CO SB 2 sb influx and linking it to an individual mCDR deployment via an observational approach would require tracking a patch of seawater that has an mCDR-derived CO SB 2 sb deficit in a Lagrangian manner, possibly by using a chemical tracer such as sulfur hexafluoride (Bakker et al. [3]). For example, if a generated CO SB 2 sb deficit is 80% re-equilibrated after 10 yr, then an mCDR credit would be worth 80% of the initially generated seawater CO SB 2 sb deficit (Fig. It could be applied to all mCDR methods that generate a seawater CO SB 2 sb deficit (or reduce a seawater CO SB 2 sb surplus) in the surface ocean although not to those that alter ocean physics in a major way (e.g., artificial upwelling). This includes but is not limited to Ocean Alkalinity Enhancement where CO SB 2 sb is "removed" by conversion to bicarbonate or Iron Fertilization and Seaweed Sinking where CO SB 2 sb is "removed" by photosynthetic CO SB 2 sb -fixation with subsequent export into the deep ocean. [Extracted from the article]