A new independent analysis concludes that shifting a larger share of domestic freight onto coastal vessels could sharply reduce greenhouse gas emissions from Australian supply chains.
Emission findings
Published on 14 October 2026 through reports, the report The Emission Reduction Potential of Mode Shift to Maritime Transport finds that, on the four essential domestic freight corridors it examined, emissions from freight movements could be cut by as much as 90 per cent by moving cargo from road and rail to coastal shipping. The authors compared the emissions performance of road, rail and maritime options on those routes and set out the relative greenhouse‑gas outcomes for each transport mode.
The report’s principal quantitative claim, that up to 90 per cent of freight emissions are avoidable through modal shift, is presented as an upper bound based on the comparisons the study made between the existing performance of the three modes. That finding is framed as an indicator of potential rather than as an immediate, guaranteed reduction across the entire national network.
Supply‑chain resilience and wider effects
Beyond emissions, the analysis emphasises that greater use of coastal shipping could strengthen Australia’s supply‑chain resilience by diversifying freight channels and reducing pressure on road networks. The report links modal diversification to improved ability to absorb shocks in the event of disruptions to single corridors or modes.
The study concentrates on a small set of core routes to illustrate the relative benefits of maritime carriage; it does not extend its numerical claim universally across every freight movement in the country. Its focus on a limited sample is intended to show what is achievable under favourable conditions and where coastal shipping offers the clearest climate advantage over land transport.
Implications for policy makers and industry are implicit in the report’s findings: the emissions differentials identified between modes should inform debates about investment, infrastructure priorities and the design of freight programmes that seek both decarbonisation and greater operational robustness. The report is presented as material that can be used by stakeholders considering how to balance environmental objectives with the practicalities of moving goods across long distances in Australia.
The analysis published via reports arrives amid ongoing national discussions about meeting emissions targets while ensuring reliable supply chains. By quantifying the emissions gap between road, rail and coastal shipping on a small number of representative corridors, the report aims to supply evidence for decisions on freight planning and climate policy.
In its concluding remarks the study frames coastal shipping not as a single remedy but as one significant lever among others that could materially reduce freight emissions and contribute to system resilience. The document and its headline finding have been made publicly available through the trade news outlet on 14 October 2026, where the report can be consulted in full for methodology details and the precise route comparisons it contains.
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