Ocean Alkalinity Enhancement
Ocean Alkalinity Enhancement is a methodology used by 1 project on Isometric. Registry records show 4,854 tonnes issued and 42.4% of them retired.
Key figures
Projects
1
Countries
1
Credits issued
4,854 t
Credits retired
2,059 t
Retired share of issued
42.4%
Source: Registry records · Data as of 1 June 2026
ICVCM status
Methodology could not be matched to ICVCM records.
The CCP label is applied to credits by the registry, issuance by issuance. An approved methodology means credits from projects using it can be eligible; it does not mean every credit carries the label.
CORSIA programme relevance
Whether the programmes this methodology is used on are approved by ICAO. Programme level only; unit eligibility depends on dates, authorisation and each programme's exclusions.
- Isometric 2024 to 2026: approved · 2027 to 2029: not approved
Projects using Ocean Alkalinity Enhancement
1 project page in the CRBN.credit database, largest issuance first.
Questions about Ocean Alkalinity Enhancement
How many projects use Ocean Alkalinity Enhancement?
1 project, in 1 country, as of 1 June 2026.
Is Ocean Alkalinity Enhancement approved by the ICVCM?
Methodology could not be matched to ICVCM records.
How much of the credits issued under Ocean Alkalinity Enhancement have been retired?
42.4%, or 2,059 of 4,854 tonnes.