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The problem with tonnage

Conventional air cargo CO₂ accounting allocates emissions according to the weight transported. It is a reasonable simplification for a network where every movement is independent. It becomes misleading the moment two movements are combined into one.

If your accounting cannot see the saving, it cannot reward it.

What flight avoidance counts

When an empty return leg carries compatible cargo that would otherwise have flown separately, the network performs one movement instead of two. The tonnage on the combined flight is unchanged — which is precisely why weight-based methods report nothing — but a whole separate movement no longer needs to happen.

  • Establish the baseline movement pattern, including empty and repositioning legs.
  • Model the combined movement against real operating constraints.
  • Document assumptions, boundaries and calculation logic openly.
  • Report the avoided movement, not the unchanged tonnage.

Why we publish the method

A methodology nobody can inspect is a marketing claim. Ours is developed through the LoopWise R&D Institute and informed by our work in the UNESCO MOST BRIDGES Coalition, so it can be examined, challenged and improved.

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