Total ships (≥5,000 GT)
28,620
14 ship types
Total CO₂ emissions
655.7 Mt
tonnes CO₂ per year
Largest emitter
Containership
183.7 Mt · 28.0% of total
Highest CO₂ per ship
Cruise Passenger Ship
72,759 t per ship
Pareto distribution of CO₂ emissions by ship type, with cumulative share and fleet count
CO₂ emissions (Mt)
Ship type
Cumulative share (%)
Emission intensity gap: share of fleet vs share of CO₂
Ship type
Share (%)
Share of CO₂ emissions
Fleet size vs total emissions (bubble area ∝ CO₂ per ship, log scales)
Annual CO₂ (Mt, log scale)
Number of ships (log scale)
Fleet count and average CO₂ per ship
Number of ships
Ship type
CO₂ per ship (t)
Breakdown by size category: Containership
Number of ships
| Size | Ships | CO₂ (t) | t / ship |
|---|---|---|---|
| < 10,000 DWT | 242 | 2,527,550 | 10,444 |
| 10,000–15,000 DWT | 616 | 8,258,176 | 13,406 |
| 15,000–40,000 DWT | 1,634 | 34,956,815 | 21,393 |
| 40,000–80,000 DWT | 1,122 | 46,393,513 | 41,349 |
| 80,000–120,000 DWT | 668 | 39,764,038 | 59,527 |
| 120,000–200,000 DWT | 654 | 42,365,386 | 64,779 |
| ≥ 200,000 DWT | 139 | 9,473,461 | 68,154 |
Size category
CO₂ (Mt)