Supply chain shocks are becoming carbon shocks

Yee Chow, the Global Head of Sustainability at Zevero, argues that supply chain shocks are increasingly resembling carbon shocks in this compelling analysis of EU energy policy

When tanker traffic through the Strait of Hormuz was disrupted earlier this year, global energy markets felt the consequences within days. The Strait of Hormuz remains one of the world’s most important energy chokepoints, and disruption there quickly feeds through into energy, freight and insurance costs. It has been, in many ways, a clear illustration of why initiatives such as AccelerateEU, the European Commission’s package to strengthen energy resilience, matter.

But the crisis also exposed a vulnerability that lies not only in Europe’s energy system, but also in the supply chains of its public sector organisations and businesses. Firms across the continent are being forced to make rapid decisions, such as switching suppliers or rerouting logistics. Many are doing so without adequate visibility over what those decisions mean for their carbon footprint, regulatory exposure or long-term resilience. 

In the rush to respond to a supply shock, the compliance consequences are being left for later. That is a problem that policy alone cannot solve quickly enough.

A supply chain shock, not just an energy shock

The Hormuz disruption is widely understood as an energy crisis, and it is. But its ripple effects extend well beyond the cost of oil and gas. Higher fossil fuel prices affect the price of plastics, petrochemicals, synthetic materials and freight. 

The pressure is already showing up in unexpected places. For instance, snack giant Calbee switched some of its packaging to black-and-white after the disruption hit ink supplies. An example of how geopolitical shocks can force product and packaging decisions at speed. 

When the cost structure shifts suddenly, procurement teams have to adapt quickly, often faster than their carbon accounting can keep pace. The result is that businesses are already changing the shape of their supply chains in ways that will affect their Scope 3 emissions without knowing it. A switch to a closer-to-home supplier might reduce logistics emissions but increase manufacturing ones, while a materials substitution made on cost grounds may carry a heavier upstream carbon footprint.

Without real-time visibility into these trade-offs, organisations are reshaping their emissions profile and future compliance exposure in the dark.

AccelerateEU raises the pressure, even as it promises relief

AccelerateEU is the right long-term response to Europe’s energy dependency. By advancing electrification, grid integration, cleaner industrial energy, and carbon market reform, it aims to reduce the structural vulnerability that episodes like Hormuz so painfully illustrate.

But that transformation will take years. In the meantime, the regulatory environment is becoming more demanding. The Corporate Sustainability Reporting Directive (CSRD), Carbon Border Adjustment Mechanism (CBAM) and the EU Emissions Trading System (EU ETS) are pushing Europe’s firms towards more detailed, decision-useful emissions data. Those who understand how energy sources, materials choices and logistics networks translate into emissions will be better placed to respond.

Carbon data as operational infrastructure

There is a tendency to think of carbon data as something that belongs in the sustainability report, produced annually, reviewed by auditors, filed and forgotten until the next cycle. In a world where supply chains are being reconfigured at speed, and regulatory frameworks are evolving rapidly, carbon data must serve as a critical layer of operational intelligence for any organisation.

Decision-ready carbon data enables leaders to compare suppliers on emissions intensity, price, and lead time, understand the carbon cost of route changes, and see how material substitutions affect product footprints and compliance exposure. This is increasingly the minimum viable position for any organisation operating in European-regulated markets.

Those who have built this capability are already using it. When shocks like Hormuz ripple through their supply chains, they are better placed to model the carbon and compliance consequences of their response options. Those without it face the same operational pressure, but make their decisions without that visibility. 

Visibility is not a luxury

AccelerateEU may ultimately be the architecture that reduces Europe’s exposure to the kind of shocks Hormuz represents. But architecture takes time to build, and organisational leaders must respond to the realities of a multi-decade transition to a lower-carbon global economy.

The Hormuz crisis has made it clear that carbon visibility is central to resilience. Across both the public and private sectors, companies responding to supply shocks, sourcing pressures, and shifting logistics landscapes are making decisions that will define their emissions trajectory and compliance position for years to come.

Leaders are already making carbon-conscious decisions under pressure. The only question is whether they are making them with visibility or flying blind.