Ocean Alkalinity Enhancement from Coastal Outfalls
Ocean Alkalinity Enhancement from Coastal Outfalls is a engineered removal methodology used by 1 project. Registry records show 4,756 tonnes issued and 43.3% of them retired.
Key figures
Projects
1
Countries
1
Credits issued
4,756 t
Credits retired
2,059 t
Retired share of issued
43.3%
Projects yet to issue
0%
Source: Berkeley Voluntary Registry Offsets Database, as used by the Methodology Lab · Data as of June 2026
ICVCM status
No ICVCM decision on this methodology yet.
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.
Issuance by vintage
| Vintage | Issued (tCO₂e) |
|---|---|
| 2026 | 1,499 |
| 2025 | 3,256 |
Source: Berkeley Voluntary Registry Offsets Database · Data as of June 2026
Related methodologies
Same scope, with a more favourable ICVCM decision.
- VM0049 Carbon Capture and Storage 4 projects · Under assessment, no decision published
Questions about Ocean Alkalinity Enhancement from Coastal Outfalls
How many projects use Ocean Alkalinity Enhancement from Coastal Outfalls?
1 project, in 1 country, as of June 2026.
Is Ocean Alkalinity Enhancement from Coastal Outfalls approved by the ICVCM?
No ICVCM decision on this methodology yet.
How much of the credits issued under Ocean Alkalinity Enhancement from Coastal Outfalls have been retired?
43.3%, or 2,059 of 4,756 tonnes.