How are the emissions from dredging a port channel counted?
Dredgers burn large amounts of marine diesel to cut, pump and dump sediment. The dredging contractor reports that fuel as Scope 1. A port authority that hires the contractor reports it as Scope 3, or as Scope 1 if it runs its own dredgers. Record fuel per cubic metre moved.
What to measure
- Fuel bought for each dredger, from bunker delivery notes.
- Cubic metres of sediment dredged.
- Distance to the dumping ground.
Capital or maintenance
Capital dredging for a new berth is a one-off project. Maintenance dredging repeats every year and belongs in your annual inventory.
What Senseible does here
Senseible reads bills, fuel invoices and production records into dated, fingerprinted records, so the figure you send a buyer can be traced to its documents.
Sources: GHG Protocol Corporate Standard, GHG Protocol Corporate Value Chain (Scope 3) Standard, IPCC 2006 Guidelines, Volume 2: Energy
Last reviewed 2026-10-22.