Last week, COVERE2 joined sustainability leaders, procurement directors, and climate strategists from across Europe at the 4th Annual Scope 3 Summit in Berlin - two days dedicated to addressing a clear-cut challenge: turning Scope 3 ambition into verified, auditable results.

The summit's theme - Scaling Data, Reporting, and Real Emission Reductions - set the tone for what turned out to be a remarkably honest conversation. Not just about what companies aspire to achieve, but about the hard operational realities standing in the way. Here are the themes that resonated most with us.

One Message, Many Voices: The Case for Standard Harmonization

Across nearly every session, a familiar frustration surfaced: the fragmentation of reporting frameworks. With CSRD assurance requirements changing, GHG Protocol updates in progress, and SBTi criteria continuing to evolve, companies find themselves navigating a constantly shifting landscape.

The panel Navigating the Next Wave: SBTi & GHG Protocol Updates - moderated by Caroline Kennedy of Logitech and joined by representatives from Siemens Healthineers, Brenntag, and Zalando - reflected growing consensus that harmonization is not a "nice to have." It is a precondition for credible, comparable Scope 3 data at scale. As long as methodological choices remain inconsistent across companies and sectors, comparability suffers - and so does the integrity of the entire reporting ecosystem.

For companies preparing for CSRD assurance or setting science-based targets, this is not an abstract debate. Methodological alignment directly affects whether your data is useful and will hold up under scrutiny.

“Design Is the Strategy”: The call to think about LCA Thinking differently

The summit's most striking message came from Chairwoman Caroline Kennedy once again, Director of Climate, Circularity & Reporting at Logitech, who delivered the Day 2 keynote. Her core argument: for product companies, Scope 3 is fundamentally a product design challenge - not merely an operational one.

Logitech's data shows that approximately 80% of their environmental impact is determined at the design stage of a product. This reframes the entire Scope 3 conversation. Supplier engagement matters, but if you're not embedding carbon intelligence into the design process itself, you’re missing a crucial opportunity - and the point altogether.

This perspective was echoed across sessions. James Cunningham of AstraZeneca described how Life Cycle Assessments are being used not just for reporting or Environmental Product Declarations, but as active tools for identifying hotspots - pinpointing which parts of a product's lifecycle or value chain carry the greatest environmental burden, and therefore the greatest reduction opportunity.

This is where LCA thinking becomes genuinely strategic. Rather than a compliance exercise, it becomes a lens for identifying where action will have the most impact - whether that's a specific material, a manufacturing process, a logistics route, or a supplier tier. Double Materiality Assessment (DMA), as required under CSRD, serves a parallel purpose at the company level: mapping where environmental impacts are most significant and where the business is most exposed to climate-related risks. Together, LCA and DMA thinking give organizations a structured way to prioritize rather than spray effort across every Scope 3 category at once.

Logitech's organizational response is also worth noting: they built a lean sustainability team but invested heavily in internal champions across departments - people trained to carry sustainability thinking into product development, procurement, and operations. The logic is compelling: change the decisions made every day in every team, rather than relying on a central function to police the outcomes.

Data Quality: The Shift from Estimates to Evidence

Perhaps the most consistent theme across both days was the urgency of moving beyond spend-based emissions estimates. The summit reached near-consensus: spend-based data is a starting point, not a destination. For any company with serious climate ambitions, relying on industry averages and "estimates of estimates" is no longer defensible - and with CSRD assurance on the horizon, it is increasingly a liability.

The direction of travel is clear: toward primary, supplier-specific, auditable data. But as several speakers acknowledged, collecting and managing this data at scale is genuinely difficult. Victoria McCormac of Jones Engineering shared how even a mid-sized engineering contractor faces significant complexity when mapping Scope 3 across purchased goods and services. Annika Gorsky of Zalando described their multi-year journey from manual GHG inventory to a partially automated data architecture - and was candid about the hurdles still ahead.

The question this raises is one the team of COVERE2 thinks about often: how can digital tools and automation reduce the burden of primary data collection, while maintaining the traceability and auditability that external assurance demands? This is not just a technology question - it requires clear data governance, defined supplier engagement pathways, and internal processes that treat carbon data with the same rigour as financial data.

One Logitech hiring decision captured this cultural shift perfectly. They made a deliberate choice to bring data scientists into their sustainability team, for the simple reason that "it is easier to teach a data scientist about sustainability than to teach a sustainability expert about data science". It is a small decision with large implications: it signals that data quality, modelling sophistication, and analytical rigour are now core competencies for serious sustainability functions - not optional extras.

The Voluntary Carbon Market: Integrity Over Speed

The summit also gave significant attention to the Voluntary Carbon Market (VCM), particularly around the evolving governance landscape. Dr. Jochen Gassner of Removall Carbon addressed the growing complexity of using carbon credits responsibly alongside in-value-chain reductions.

The direction is encouraging but slow: nature-based credits are under more rigorous scrutiny, with the ICVCM (Integrity Council for the Voluntary Carbon Market) emerging as a reliable reference point - effectively a "verifier of the verifiers." Luca Carbonara from Verra presented the S3S Program, a new framework for certifying value chain interventions with standardized measurement, reporting, and verification - offering to directly address the accountability gap in Scope 3 reduction claims.

On biodiversity credits, the mood was cautious: development remains nascent, with methodological and market infrastructure still being built. But the direction is clear, and companies with nature-related exposure in their value chains should be paying attention now.

One actionable takeaway: given projections of significantly higher demand for high-integrity carbon removal credits around 2030-2035 as net-zero deadlines approach, companies with long-term climate strategies would be wise to explore long-term offtake contracts sooner rather than later.

What This Means in Practice

The 4th Scope 3 Summit reinforced something we believe at COVERE2: the era of qualitative sustainability commitments is giving way to one of quantified, verified performance. The companies that will lead - and comply credibly - are those that treat sustainability data as a core business asset: collected rigorously, managed systematically, and disclosed transparently.

That requires getting hotspot identification right from the start, through DMA and LCA thinking. It requires building supplier engagement programs that generate primary data, not just questionnaire responses. It requires internal processes that produce audit-ready evidence chains. And it increasingly requires the kind of data infrastructure and analytical capability that has historically lived in finance or operations - now applied to emissions.

These are exactly the challenges COVERE2 is built to help with. If your organisation is navigating CSRD reporting, working through a Double Materiality Assessment, or trying to understand where your most significant Scope 3 impacts actually sit - we should talk.