Container ship · Liberia flag · built 2004
ATLANTIC DISCOVERER: CO₂ emissions 2018–2025
IMO 9243590 EU ETS8 reporting years
- CO₂ reported 2025
- 14,247 t
- Fuel burned
- 4,555 t
- Distance
- 32,904 nm
- Time at sea
- 3,034 h
- Emitted at berth
- 8% of total
- Share of year under way
- 35%
- Gross tonnage
- 30,024
ATLANTIC DISCOVERER against its type
Built in 2004, it is 4 years older than the median container ship on this register, which was built in 2008 (3,088 vessels with a known build year). At 30,024 gross tonnage it is smaller than 64% of the other 3,000 container ships with a recorded tonnage. It is one of 976 container ships here under the Liberia flag, 27.9% of the 3,495 on the register. The same builder is recorded for 75 other vessels here, 26 of them container ships. Its MRV returns name it ATLANTIC DISCOVERER for 2018–2023 and MSC ASSUNTA III for 2024–2025. The reported port of registry changed: MAJURO (2018–2023), then MONROVIA (2024–2025).
Its 14,247 t of CO₂ for 2025 is 13% below the median of 16,359 t among the 2,234 container ships on this register that reported for 2025. Per nautical mile it emitted 433.0 kg CO₂, 21% below the type median of 545.6 kg. It logged 3,034 hours at sea against a median of 3,155 hours for its type that year. 7.7% of its 2025 emissions were at berth; the median for container ships was 3.2%. Across 8 years with reported emissions, the highest was 2023 (22,990 t) and the lowest 2024 (9,508 t). Its efficiency percentile within the type went from 63 in 2018 to 77 in 2025 (lower is more efficient). Of the 3 sister ships listed below with a 2025 return, 2 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 14,247 | 4,555 | 32,904 | 3,034 | 1,099 | 433.0 | 24.0 | 77 |
| 2024 | 9,508 | 3,040 | 17,185 | 2,930 | 700 | 553.2 | 44.6 | 92 |
| 2023 | 22,990 | 7,375 | 51,723 | 3,947 | 774 | 444.5 | 29.1 | 77 |
| 2022 | 12,210 | 3,872 | 26,895 | 1,920 | 231 | 454.0 | 41.1 | 89 |
| 2021 | 12,332 | 3,912 | 23,438 | 1,663 | 676 | 526.2 | 38.0 | 87 |
| 2020 | 12,285 | 3,897 | 21,132 | 1,441 | 257 | 581.3 | 44.6 | 92 |
| 2019 | 12,647 | 4,058 | — | — | 292 | 486.3 | 22.2 | not ranked |
| 2018 | 11,547 | 3,703 | 23,750 | 1,751 | 1,148 | 486.2 | 23.4 | 63 |
Vessel particulars
- IMO number
- 9243590
- Previously reported as
- MSC ASSUNTA III
- Ship type
- Container ship
- Gross tonnage
- 30,024
- Length overall
- 208.0 m
- Beam
- 32.3 m
- Year built
- 2004
- Flag state
- Liberia per EU MRV 2025
Sources disagree: Wikidata/AIS (undated) list Marshall Islands. The flag shown is from the newest official source, the EU MRV return for 2025. - Builder
- Stocznia Gdynia
- Port of registry
- MONROVIA MRV 2025
- Technical efficiency (design)
- EEXI (16.88 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-02-06
- Compliance document expires
- 2027-06-30
Efficiency against its own type2025
Position 1,417 of 1,838 qualifying container ships by EEOI, at the 77th percentile. The dashed line is the type median, 14.2; this vessel reported 24.0.
EEOI divides emissions by transport work, which for this vessel and year was 594,130,108 tonne-miles over 32,904 nautical miles.
Reported CO₂ by year
Reported CO₂ in 2025 was 23.4% higher than in 2018, for EU/EEA voyages only.
From 2024 to 2025, emissions rose 49.9% while distance sailed rose 91.5%and CO₂ per nautical mile fell 21.7%.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
- 14,471 t
- Methane (CH₄)
- 0.23 t
- Nitrous oxide (N₂O)
- 0.82 t
- Under EU ETS
- 9,630 t, 68% of total
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | AMERICAN BUREAU OF SHIPPING HELLENIC SINGLE MEMBER LIMITED LIABILITY COMPANY (ABS HELLENIC S.M. LTD) | Greece |
| 2024 | DNV | Germany |
A change of verifier is not in itself a sign of anything being wrong.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0).
This page draws on 8 MRV reporting years, an efficiency ranking, 5 of 5 vessel particulars and a name history. Not found in the sources for this vessel: AIS movements in Norwegian waters, 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.