Notes / Sustainability
You can't manage what you can't see: supply chains and sustainable events
In short
Most of an event's environmental impact sits in its supply chain, not in the recycling bins guests can see. Producers can start getting real visibility with three practical steps: a short supplier questionnaire, mapping the highest-impact categories first, and a small pilot with willing suppliers.
Every year, event producers announce bold sustainability commitments. Recycling stations go up. Single-use plastic is swapped for compostables. Offset certificates are bought. And yet the events industry still carries a large environmental footprint that most producers can't actually quantify, because they're only looking at the tip of the iceberg.
The inconvenient truth: most of an event's impact is buried in its supply chain. It lives in the workshops where sets are built, in the logistics that move equipment across borders, in the farming behind the menu, and in the disposal of materials used for 72 hours and then thrown away. Without insight into who made what, where, and at what cost, sustainability claims are incomplete at best and greenwashing at worst.
The illusion of visible sustainability
The industry has made real progress on what you could call visible sustainability: the things guests can see and touch. Compostable cups, solar-powered stages, shuttle buses instead of car parks. They send a strong signal, but they address only a fraction of an event's total footprint.
The rest sits in what sustainability practitioners call Scope 3 emissions: indirect emissions from the supply chain that neither the producer nor the venue directly controls. The carbon in producing and transporting temporary structures, the water footprint of food, the conditions at merchandise manufacturers, the waste suppliers generate before anything reaches site.
Without visibility into that chain, producers are flying blind. They can clean up their own operations, but they can't meaningfully cut their total impact, or make honest claims about it.
Why it's so hard
Events run on compressed timelines, shifting supplier networks and tight budgets. A large event can work with dozens of direct suppliers, each relying on their own sub-suppliers. Tracing credentials through even two or three tiers is slow work, and often meets resistance.
There's a structural problem too. Unlike fashion or food, where regulation, consumer pressure and reputational risk have pushed supply chain accountability, events have largely escaped scrutiny. Most producers aren't required to report Scope 3 emissions, there's no universally enforced standard for supplier credentials, and because events are temporary, long supplier relationships that build trust and transparency are rare.
The result is a patchwork of good intentions with little real accountability.
1. Put a supplier questionnaire into procurement
The most accessible first step is to make sustainability a procurement criterion, not an afterthought. A standard questionnaire for every supplier at contracting stage: how they measure their own footprint, waste policies, labour standards, certifications, and what they can tell you about material origins.
It doesn't need to be heavy. Ten to fifteen good questions give real insight and stay manageable for small suppliers. Asking at all changes behaviour: suppliers who know they'll be judged on sustainability start preparing to compete on it. Give the answers real weight in supplier selection, alongside price and capability, and the market notices.
The pitfall: treating it as box-ticking. If nobody reads the answers or follows up, suppliers learn the questions don't matter. Avoid questionnaire fatigue too. If every client sends a different 40-page form, suppliers fill them in badly or not at all. Building on an existing framework, such as those from isla or the Net Zero Carbon Events initiative, gets better answers with less burden.
2. Map your highest-impact categories first
Mapping the full supply chain is a long-term ambition. Trying it all at once is a recipe for paralysis. Start with the two or three categories that carry the most impact.
For most events those are catering, temporary structures and build materials, and logistics. The food served to thousands of guests, protein especially, typically outweighs the energy used on site. The embodied carbon in a custom-built structure can exceed the emissions of every generator running during the event.
Map those first: where inputs come from, what certifications suppliers hold, what alternatives exist. That gives you data instead of assumptions, for procurement, supplier conversations and honest reporting.
The pitfall: scope creep. Set a bounded goal, such as documenting the origin of most catering ingredients and the materials in the main stage within one event cycle. Accept that some suppliers won't have the data. Write down the gaps; they're where the next conversation starts.
3. Pilot impact measurement with a few key suppliers
The biggest shift comes when producers stop interrogating suppliers and start working with them. A small group of long-term suppliers shares data on emissions, waste, water and materials using one common method.
It works best when the producer offers something back: a multi-year commitment, help with measurement tools, recognition in event communications, or preferred terms. The aim is shared interest, not compliance. When suppliers feel like partners, data quality improves, and the relationship becomes a route to real improvements: lower-carbon materials, take-back schemes, consolidated logistics. Even two or three such partnerships are enough to start learning within a single event cycle.
The pitfall: starting with suppliers who can't or won't engage. Choose partners who already show some commitment and can collect data, and agree up front who owns the data and how it will be used publicly.
The bigger picture
Full supply chain visibility isn't reached in one event cycle. It takes sustained commitment, collaboration and steady improvement. But the direction is clear. Disclosure requirements are tightening, large clients increasingly ask their event partners for supply chain evidence, and audiences are getting better at telling real sustainability from surface signalling.
More fundamentally, this is simply what honest sustainability looks like. An event can't credibly call itself sustainable if it doesn't know the cost of everything that went into it. The tools and frameworks to start exist today. What's often missing is the decision to start.
The most sustainable event isn't the one with the most impressive recycling. It's the one whose producer can account for, and is working to reduce, every significant impact from raw material to the last load leaving site. The numbers will be uncomfortable at first. They almost always are. But you can't improve what you can't see.
A first version of this piece was published on LinkedIn on 31 March 2026.
