get https://api.searoutes.com/co2/v2/execution/
This endpoint returns the CO₂e details of an itinerary by hash (the unique fingerprint used to identify an itinerary). Those hashes are returned in /itinerary/v2/execution.
The response gives the CO₂e breakdown at the itinerary level (total, wtt, ttw, intensity), as well as at the leg level.
The distances are given in meters and the CO₂e emissions in grams.