A landmark UK Supreme Court ruling is rewriting how infrastructure projects are evaluated for climate impact and port authorities are now firmly in the spotlight. The ruling, which mandates inclusion of downstream emissions in Environmental Impact Assessments (EIAs), has already triggered lawsuits against oil and gas developments. Experts now warn that any sector enabling large-scale emissions, including ports, shipping, and logistics, must account for its full environmental footprint or risk legal, regulatory, and financial fallout.

Sjoerd de Jager, Managing Director and Co-Founder of PortXchange, is a recognised pioneer in port digitalisation and maritime decarbonisation. He says the ruling sends a clear signal: “Ports don’t operate in a vacuum. They are central to global supply chains and the emissions generated by those chains. This ruling confirms what many of us have argued for years: if we want real decarbonisation, Scope 3 can’t be ignored. The industry needs to move from reporting what’s easy to measuring what matters.”

PortXchange, based in Rotterdam, works with ports globally to address operational inefficiencies and reduce emissions. Its suite of digital tools, including its flagship platform EmissionInsider, provides real-time emissions intelligence and compliance-grade reporting. The company is helping modernise an industry under increasing scrutiny from courts, regulators, investors, and the public.

The UK Supreme Court’s decision in Finch v Surrey County Council invalidated a fossil fuel permit for failing to assess emissions from the fuel’s end use. That precedent is now fuelling active legal challenges to major North Sea oil and gas projects, including Rosebank and Jackdaw, led by Greenpeace, Uplift and Friends of the Earth. Their position is unequivocal: if emissions are generated, they must be assessed and mitigated. Legal analysts expect the same principle to apply to infrastructure expansion projects, including port developments.

Despite this, many ports still publish ESG reports that exclude the largest share of their emissions: ships at berth, trucks on the road, and emissions from connected rail transport. This kind of selective accounting is increasingly seen as unacceptable by courts, climate regulators and capital markets alike.

Adding urgency, the European Commission is currently reviewing key aspects of its Fit for 55 climate package, with strong signals that ports will soon be required to monitor and report vessel emissions at berth under an expanded EU ETS and MRV framework. For ports that have yet to digitise emissions tracking or integrate Scope 3 into their strategies, this shift will bring not only legal risk but also commercial exposure.

“Ports that fail to act now are going to find themselves locked out of the next wave of green growth,” said de Jager. “Scope 3 isn’t just about compliance; it’s about credibility, capital and competitiveness.”

That financial pressure is already visible. Institutional investors and green bond providers are increasingly rejecting infrastructure projects that fail to include Scope 3 emissions in their ESG disclosures. Ports seeking EU taxonomy-aligned or sustainability-linked financing will be expected to demonstrate end-to-end emissions transparency. “Pretending it’s someone else’s footprint won’t fly with lenders anymore,” adds de Jager.

Even as this pressure builds, the UK Government last week announced a £30 million investment package to accelerate maritime decarbonisation funding for shore power, clean fuels, and digital infrastructure. While PortXchange welcomed the move, de Jager warns that grants and pilots won’t be enough unless backed by real data and accountability.

“We applaud the investment, but innovation without transparency is a missed opportunity,” he said. “Ports need full visibility into their emissions profile and the ability to act on it. That’s exactly what EmissionInsider delivers.”

EmissionInsider provides real-time tracking of emissions across ships, trucks, and rail, delivering a comprehensive, defensible view of Scope 1, 2, and 3 emissions. The platform is already in use by leading ports to proactively address their full environmental impact, well before courts or regulators compel them to act.

PortXchange is actively partnering with proactive ports, terminal operators across the UK, Europe, and the Americas to align their emissions strategies with today’s rapidly evolving legal and regulatory expectations. The company is now offering rapid onboarding and support for ports preparing for infrastructure permitting, ESG audits, or access to climate-linked finance.

“Ports don’t get to call themselves sustainable while ignoring 80% of their emissions,” said de Jager. “Scope 3 is where the accountability is. It’s where the credibility is. And now it’s where the law is.”

Sjoerd de Jager, Managing Director of Portxchange