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Logistics calculations methodology

Industry standard accreditation

Lune’s calculations are based on the leading international standard for logistics emissions calculations, the GLEC Framework.

GLEC is a program developed by the Smart Freight Centre to offer a harmonised, efficient, and transparent way to calculate and report logistics emissions.

Lune’s methodology has been audited and accredited by the Smart Freight Centre and is compliant with ISO 14083.


Overview: how we calculate emissions

Shipment CO₂ emissions are calculated – with the highest feasible degree of accuracy – based on how much was shipped, how far, and how.

Lune needs to know three things:

  1. Shipment method – what was used to move the goods
  2. Route or distance – how far were they moved
  3. Cargo weight – how much was moved

The following formula is then applied:

Shipment Method’s Emission Factor × Distance × Cargo weight

Each of these data points needs to be provided or calculated, let’s see below how it works, one by one.


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1. Shipment method

Lune covers all modes of transport including ocean, inland waterways, road, air, and rail. In addition, you can also calculate warehouse-related emissions.

Depending on the data you have available, the shipment method used for the calculation can be either high-level or more granular. For high-level data (e.g. if you only know the shipment was using a truck or a container ship), we use industry average Emission Factors by the GLEC Framework.

More granular information, such as vessel ID, vessel / vehicle size, fuel type, refrigeration, location and more, can be used to increase the accuracy of the calculation.

Based on the above, Lune matches the shipment method to the best Emission Factor.