Container ship · Malta flag
CMA CGM UNITY: CO₂ emissions 2022–2025
IMO 9897767 EU ETS3 reporting years
- CO₂ reported 2025
- 54,602 t
- Fuel burned
- 19,274 t
- Distance
- 83,029 nm
- Time at sea
- 5,554 h
- Emitted at berth
- 2% of total
- Share of year under way
- 63%
CMA CGM UNITY against its type
It is one of 336 container ships here under the Malta flag, 9.6% of the 3,495 on the register. The returns for 2022–2025 all give Valleta as port of registry.
Its 54,602 t of CO₂ for 2025 is 3.3 times the median of 16,359 t among the 2,234 container ships on this register that reported for 2025. Per nautical mile it emitted 657.6 kg CO₂, 21% above the type median of 545.6 kg. It logged 5,554 hours at sea against a median of 3,155 hours for its type that year. 2.3% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 3 years with reported emissions, the highest was 2025 (54,602 t) and the lowest 2022 (7,787 t). Its efficiency percentile within the type went from 11 in 2022 to 5 in 2025 (lower is more efficient). Of the 7 comparable vessels listed below with a 2025 return, 2 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2022–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 54,602 | 19,274 | 83,029 | 5,554 | 1,282 | 657.6 | 6.3 | 5 |
| 2024 | 37,047 | 12,600 | 48,700 | 2,840 | 745 | 760.7 | 7.2 | 10 |
| 2022 | 7,787 | 2,544 | 9,219 | 578 | 1,025 | 844.6 | 7.3 | 11 |
Vessel particulars
- IMO number
- 9897767
- Ship type
- Container ship
- Flag state
- Malta per EU MRV 2025
- Port of registry
- Valleta MRV 2025
- Home port
- Valleta
- Technical efficiency (design)
- EIV (6.46 gCO₂/t·nm)
- Verifier
- AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD), Greece
- Accreditation
- 1083-2
- Compliance document issued
- 2026-03-29
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 91 of 1,838 qualifying container ships by EEOI, at the 5th percentile. The dashed line is the type median, 14.2; this vessel reported 6.3.
EEOI divides emissions by transport work, which for this vessel and year was 8,612,347,003 tonne-miles over 83,029 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 601.2% higher than in 2022, for EU/EEA voyages only. No return is recorded for 2023, so the series has gaps.
From 2024 to 2025, emissions rose 47.4% while distance sailed rose 70.5%and CO₂ per nautical mile fell 13.6%.That points mainly to how much the vessel sailed, rather than the other.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 58,055 t
- Methane (CH₄)
- 100.20 t
- Nitrous oxide (N₂O)
- 2.44 t
- Under EU ETS
- 29,090 t, 53% of total
Laden voyages2025
- CO₂ on laden voyages
- 53,321 t, 98% of total
- Fuel, laden
- 18,824 t
- CO₂ per nm, laden
- 642.2 kg
The rest of the 2025 total was emitted on ballast legs or at berth.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2022–2025, published by the European Commission.
This page draws on 3 MRV reporting years, an efficiency ranking and 1 of 5 vessel particulars. Not found in the sources for this vessel: AIS movements in Norwegian waters, a name history, a licensed photograph, a sanctions listing and US port state inspections.
Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.