Measuring Impact Together

Bram Merkx December 22, 2025

Towards a common framework for festival monitoring

As the festival sector moves towards circular and climate-neutral event production, one thing has become clear: measuring impact is essential. Reliable data allows organisers to understand where change is needed, track progress, and make better decisions.

Within the Green Deal Circular Festivals (GDCF), we developed the GDCF Monitor: a practical tool to measure the footprint and impact of all facets of a festival, from energy and mobility to materials and circularity. The Monitor builds on the GDCF Model, an extensive framework developed with experts, festivals, and the Dutch Ministry of Infrastructure and Water Management. It provides a consistent structure for data collection and supports festivals in designing and tracking sustainability strategies.

But the GDCF Monitor is not the only monitoring tool that is available for festivals and event. Organisations like Climeet, A Greener Future, GSES, Green Producers Tool, Tapio, ZeroZero, and Rubbish Ideas have also entered the field, each offering their own valuable perspectives on event sustainability. That is of course a very good and needed development, but this is also causing a broad range of key indicators and different standards to emerge. During this year’s ADE Green Conference, GDCF invited these developers and other stakeholders for a closed-door discussion on one shared goal: harmonisation.

Overview of monitoring tools for festivals and event organisers

We’ve created a matrix summarising the sustainability monitoring tools, with key features, scope, strengths and gaps:

Tool

Primary focus

Key strengths

Main gaps

GDCF Monitor

Circular and climate-neutral festivals

Comprehensive coverage across carbon, materials, and circularity; tailored for festivals

Currently limited to GDCF network; integration with other systems in progress

Climeet

Carbon accounting for physical, hybrid, and digital events

User-friendly platform, GHG-aligned methodology

Strong focus on carbon; limited material or circular metrics

A Greener Future (AGF)

Certification and benchmarking for festivals and live events

Recognised framework, broad dataset across sustainability themes

Limited granularity on circular/material flows

GSES – Green Event Standard

Modular ESG and supply-chain system with event module

Robust architecture, CSRD alignment, strong benchmarking potential

Requires adaptation for cultural/festival contexts

Green Producers Tool

Emissions tool for culture and creative industries

Extensive emission-factor database, cross-sector applicability

Focus on carbon rather than circularity; limited material data

Tapio

Data-collection and sustainability reporting platform

Strong data-management features

Less specific for festival production metrics

ZeroZero

Event sustainability and supplier collaboration

ISO 20121 alignment (pending confirmation)

Limited public documentation; scope unclear

Rubbish Ideas

Circular-materials and waste consultancy

Strong on waste design and reuse systems

No public monitoring framework yet published

 

Across these tools, three things stand out:

  1. Carbon focus dominates: Most tools concentrate on calculating CO₂e emissions (energy, travel, production).
  2. Circularity remains underdeveloped: Few platforms currently track material flows, reuse systems, or circular-economy loops with the same precision as the GDCF Model.
  3. Interoperability is key: Data formats, units, and methodologies differ, making it difficult to compare results or aggregate impact between tools and measures.

The GDCF Monitor distinguishes itself by bridging carbon and circularity, linking environmental impact directly to material use and festival operations. Yet, for the transition to scale across Europe, a common measurement framework is needed for all of us to speak the same language (Most heard argument: This will only work if we can align by “comparing apples with apples”).

Collective exploration

The discussion during the ADE Green Conference marked the beginning of a collective exploration. GDCF will now initiate a structured Monitoring Harmonisation project in 2026 to identify overlap, gaps, and opportunities for alignment across tools. We have already identified three important factors to take into consideration:

  1. Indicator Mapping: Comparing the metrics used by each tool with the GDCF Model to identify shared data points and missing indicators.
  2. Data Alignment: Exploring how emission factors, units, and categories can be standardised or translated between systems.
  3. Reporting Framework: Defining a minimal set of shared indicators that enable consistent benchmarking across the users of the tools.

Sustainability measurement should not be a competition, it should be a collaboration based on shared knowledge, transparent data, and collective progress. By harmonizing measurement tools, the Green Deal Circular Festivals aim to make impact tracking easier, more accurate, and more meaningful.


More info about our tools and resources

More info about the GDCF Model can be found here. Looking for the GDCF Monitor? Check out this part of our website.

In November 2025 we have relased the GDCF Monitoring Excel Tool as a beta version. If you want to learn more, or participate in the beta, please read this article.

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