This endpoint returns CO2e emissions (i.e CO2 equivalent emissions) in grams (g) for the shortest path between a port of origin (from) and a port of destination (to).

Origin and destination

You must provide either fromLocode or fromCoordinates for the origin and either toLocode or toCoordinates for the destination.

Vessel

You can obtain accurate CO2 values for a specific vessel by passing its IMO as a query parameter (only available for Dry container types). If we cannnot find enough data on the IMO you passed as a parameter, if you pass a wrong IMO number or if you pass no IMO, we estimate the CO2e emissions based on the trade lane (with 30 trade lanes supported) using the GLEC coefficients.

Cargo specifications (container only)

We provide CO2 calculation for FCL and LCL. We support dry and reefer container types (containerSizeTypeCode).
The following types are supported by our API :
20GP or 22G1 (20ft, General purpose (Standard)) [Default]
40GP or 42G1 (40ft, General purpose (Standard)),
40HC or 45G1 (40ft High cube, General Purpose),
22R1 (20ft, Reefer),
40NOR or 42R1 (40ft, Reefer),
40REHC or 45R1 (40ft High cube, Reefer)

Here are common use cases :

FCL

The number of containers and the characteristics of the containers can be precised. By default, we return emissions for one TEU (20G1, Dry)

LCL

You can give a non integer number of containers that allows you to calculate CO2 for LCL.
If you don't know the number of containers, you can pass the weight and/or volume and the API will estimate the number of containers. In case of reefer, please set containerSizeTypeCode = 22R1.

Response

The response contains CO2e WTW (well-to-wheels) emissions in grams (g) for the shortest route between origin and destination ports. We also provide detailed emissions with TTW (tank-to-wheels) emissions and WTT (well-to-tank) emissions. The method takes into account the emissions caused by the fuel consumption of the main engines, the auxiliary engines and the boilers.
The response also returns the intensity factor (gram of CO2 per ton.kilometer) which is calculated based on the CO2e WTW, distance and the weight provided. If no weight has been provided, we estimate the weight based on the number of containers and their type (weight in properties)

The parameters field in the response contains all the parameters that were given in the request.

The properties field in the response gives some data that was used to calculate the CO2 based on the parameters for example the distance, the distance in ECA zones, some data about the vessel, the trade lane, etc. The property dataType precise if the data used to calculate the CO2 emissions is default data (representarive of average operating practices) or modeled data (taking into account vehicle information).

Note that the distance we use to calculate CO2e is 15% higher than the shortest distance (returned in the respons in meters (m)) as recommended by the GLEC framework to take into account the stops in other ports, the weather and all other deviations from the shortest route.

Methodology references

The method used to calculate emissions is based on the following references :

  • Third IMO Greenhouse Gas Study 2014;
  • Fourth IMO Greenhouse Gas Study 2020;
  • EMEP/EEA air pollutant emission inventory guidebook 2019;
  • GLEC Framework 2020.
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