Low Carbon Shipping: Defensive Cost or Competitive Edge?

CMA CGM operates one of the world’s largest container shipping and logistics networks, serving customers in more than 160 countries and moving cargo across a fleet that spans hundreds of vessels [CMA CGM]. That scale carries responsibility: to lower the carbon intensity of an industry that underpins roughly 80% of global trade by volume [UNCTAD Review of Maritime Transport 2023]. For the cargo owners who depend on that network, the shift toward low-carbon shipping is reshaping how supply chain emissions are measured, managed, and monetized.

International shipping accounts for close to 3% of global greenhouse gas emissions, a share the International Maritime Organization projects could rise sharply without intervention [IMO Fourth Greenhouse Gas Study 2020]. That figure explains why decarbonization has moved from the compliance file to the executive agenda. It is no longer a checkbox — it is a determinant of enterprise value.

Why Low Carbon Shipping Now Sits on the Executive Agenda

Five years ago, carbon reduction sat quietly on a compliance checklist. Today it functions as a driver of enterprise value, customer retention, and market access. For companies moving goods across oceans, transport is frequently the largest single source of Scope 3 emissions — making the supply chain both the largest liability and the largest opportunity on the balance sheet.

The strategic pressure now converges from four directions at once. Each one attaches directly to freight and rewards early action.

Four Forces Driving the Shift

1. Regulation is tightening. Maritime transport entered the EU Emissions Trading System (EU ETS) on 1 January 2024, requiring shipping companies to surrender allowances for a phased and rising share of emissions on EU-related voyages [European Commission, Reducing emissions from the shipping sector]. Compliance costs climb on a defined schedule.
2. Customers are selecting on carbon. Buyers increasingly qualify suppliers on verified environmental performance, folding shipment-level emissions data into their own disclosure obligations. A cleaner supply chain has become a genuine differentiator in competitive tenders.
3. Investors are scrutinizing Scope 3. Institutional capital treats emissions disclosure as a proxy for management quality, reinforced by frameworks such as the ISSB’s IFRS S2 climate standard [IFRS Foundation, IFRS S2 Climate-related Disclosures]. Credible, auditable transport data strengthens standing with the market.
4. Fuel cost volatility rewards diversification. Traditional bunker fuel markets remain exposed to price swings and regulatory surcharges. Diversifying the energy mix toward low-carbon alternatives helps hedge against both.

How ACT+ Puts Low Carbon Shipping Into Practice

Against this backdrop, CMA CGM developed ACT+, its dedicated decarbonization solution for companies ready to convert environmental ambition into measurable results [CMA CGM, ACT+]. The framework follows a straightforward sequence built for accountability.

• Measure: Estimate the footprint of maritime shipments on a well-to-wake basis, capturing emissions across the full fuel lifecycle.

• Reduce: Lower emissions using low-carbon fuels, including second-generation biofuels derived from waste and residues rather than food crops.

• Compensate: Offset the remaining emissions through selected environmental projects.

Each commitment is documented through an official declaration, verified by an independent third party, and aligned with applicable ISO standards [CMA CGM, ACT+]. That verification chain matters, because unverified claims carry reputational and regulatory exposure that offsets their intended benefit.

Low Carbon Shipping as Competitive Distance

The framing is the decisive part. Decarbonization, approached strategically, is not a drag on margin. It is a hedge against regulatory, reputational, and commercial risk — and, increasingly, a reason a customer chooses one supplier over another.

Companies that reduce emissions at the source, rigorously verify their claims, and report credibly will convert an emerging cost into a durable competitive advantage. The move from cargo mover to trade enabler is not simply about efficiency. It is about building a supply chain that customers, regulators, and investors can trust.

The Question for the Leadership Team

One question is worth putting to every executive team weighing its next move. Is the supply chain decarbonization strategy defensive — or is it building competitive distance that rivals cannot easily close? The organizations that answer decisively today will define the standard for low-carbon shipping tomorrow.