GreenFerries is a hobby project, all the data shown here has no official value. It is Open Source, so you can double check and modify it.

Ecoscore B
The Ecoscore compares average CO₂ emissions per passenger per km.
‟emits like 2.1 planes” means that the ferry emits more than twice what an average plane would on the same distance for one passenger.

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Docs: FAQ ↗ EcoScore API & Dumps

Data Sources: EU 🇪🇺 Thetis-MRV Report ↗ Wikipedia ↗

Community: GitHub ↗ Contact ✉️ Discuss with us on Riot/Matrix.org ↗