Decarbonization: discover concrete solutions to reduce your Scope 3 emissions starting in 2026

For many organizations, the majority of emissions do not come from internal operations, but from the value chain. Scope 3 emissions can account for up to 90% of a company’s carbon footprint, and they often remain the most difficult to manage due to incomplete data, limited comparability among suppliers, a lack of visibility, and the complexity of implementation.

That is precisely the goal of our webinar: to show how to turn intentions into action, starting in 2026, using a structured, well-equipped approach and drawing on real-world experience (Auchan Retail).

Why Scope 3 “purchasing” Is the Tipping Point

Even when Scope 1 and 2 emissions are well managed, it is very difficult to achieve a credible low-carbon trajectory without taking action on procurement. The challenge is not just to “measure,” but to succeed in:

• Identify priority suppliers and categories (80/20 principle);

• collect usable and comparable data;

• incorporate carbon considerations into purchasing decisions (on the same level as quality and price);

• transform the data into a time-bound reduction plan. 

From Diagnosis to Action: The Operational Method

The webinar highlights a simple and realistic approach that avoids the pitfall of trying to do “everything at once”:

1. Target strategic suppliers and the categories with the highest emissions (or those where leverage is most accessible). 
2. Collect consistent and comparable data (PCF / emission factors) without overburdening the organization. 
3. Make decisions based on a robust carbon criterion that is integrated into the procurement cycle (sourcing, consultations, contract negotiations, and monitoring). 
4. Driving continuous improvement: measurement, roadmap, governance, metrics, and communication of results. 

The Decarbo’Solution® solutions presented during the webinar

1) Decarbo’Supply®: Engage Your Suppliers and Ensure the Reliability of Your Scope 3 Emissions

Decarbo’Supply® allows you to gradually onboard your suppliers (particularly small and medium-sized businesses) and collect more reliable and comparable carbon data. Suppliers have access to a guided workflow and a calculator to generate actionable information for the client.

2) Decarbo’Tender®: Incorporate a robust carbon criterion into your requests for proposals

Decarbo’Tender® is designed to incorporate carbon considerations early in the process, at the stage when it is easiest to change supplier selection: during the bidding process. The goal is to obtain comparable and auditable data, and to enable a “lower-carbon” selection while maintaining equivalent quality and price.

3) Decarbo’Commit®: Complementing the “PCF” Vision with Supplier Climate Maturity

Beyond a product or service’s carbon footprint, many organizations need a structured view of supplier maturity (assessment, trajectory, transition plan, governance, progress). Decarbo’Commit® provides this management layer to structure a “Scope 3 Suppliers” program.

4) Decarbo’Target®: Turning Data into a Manageable Transition Plan

Once the data has been made more reliable, the focus shifts to forecasting and decision-making: what levers to use, what impact to expect, what timeline to follow, and what resources to allocate? Decarbo’Target® enables you to develop and manage a transition plan (goals, trajectories, simulations, and action tracking).

Case Study: Auchan Retail (95% Scope 3 and scaling up by 2026)

The case study from Auchan Retail provides a very concrete illustration of this topic: for a retailer, the vast majority of emissions fall under Scope 3 (more than 95%), meaning they are associated with the products sold and the company’s relationships with suppliers. 

To bring on board suppliers of a wide range of sizes and levels of maturity, Auchan conducted a pilot program in the summer of 2025 with six participating small and medium-sized enterprises (SMEs) in both the food and non-food sectors, ranging from suppliers that were already well-established to others that were “just starting out.” All six SMEs completed the process, and the stated goal is a large-scale rollout in 2026. 

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