Beyond the Carbon Footprint: The ACT Methodology for a Sustainable Business Transition
In the face of the environmental crisis, businesses have a vital role to play in the fight against global warming. Indeed, their operations generate greenhouse gas (GHG) emissions, which are often linked to the use of resources—including energy—and thus contribute to the climate change we are experiencing today.
In France, many organizations conduct a carbon assessment using methods such as the BEGES-r (Regulatory Greenhouse Gas Emissions Assessment). This assessment analyzes the direct and indirect CO₂ emission factors associated with the company’s activities within a well-defined scope. However, while this tool is essential, it is not sufficient on its own to drive a genuine transition toward a low-carbon future.
This is where the ACT (Assessing Low Carbon Transition) methodology— developed by ADEME and CDP—comes into play. This strategic tool enables companies to translate the results of their carbon assessments into concrete, measurable actions aligned with the goals of the Paris Agreement. ACT provides a structured framework for developing a sustainable strategy that combines GHG emissions reductions with competitiveness.
1. Understanding the ACT Methodology: An Essential Supplement to the GHG Assessment
1.1. Objectives of the ACT Method
1.2. Key Steps in the Methodology
2. Integrate ACT into the company’s overall strategy
2.1. Rethinking Economic Models
2.2. Conditions for Successful Implementation
3. Why Adopt ACT? The Benefits for Businesses
Understanding the ACT Methodology: An Essential Complement to GHG Assessments
Objectives of the ACT Method
The ACT method goes beyond simply calculating greenhouse gas emissions. It places these GHG emissions within a global context linked to global climate goals. Its main objectives are:
🌍 Align businesses with the Paris Agreement: Limit global warming to below 2°C and, ideally, to 1.5°C by 2100 by adopting consistent low-carbon pathways.
🎯 Develop ambitious action plans: Turn the results of the GHG inventory (BEGES) into concrete measures, incorporating short-, medium-, and long-term goals.
🔍 Ensure complete transparency: Provide measurable and verifiable carbon data to track progress year after year.
Key Steps in the Methodology
The ACT methodology is based on a structured, multi-step approach, as described in Section 5.3 of the official document:
1️⃣ Internal preparation and team mobilization
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- Identify one or more employees responsible for implementing the method.
- Raise awareness among internal and external stakeholders about the carbon reduction initiative and climate-related issues. This engagement is crucial to ensuring the support of all stakeholders involved, including employees.
2️⃣ Initial Assessment and Data Collection
- Conduct a thorough assessment of existing GHG emission factors.
- Collect data on the company’s current practices, including investments, emissions trajectories, and the technologies used.
3️⃣ Analysis and Definition of Low-Carbon Pathways
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- Assess the gaps between current practices and the low-carbon pathways recommended by scientific experts.
- Identify the priority actions needed to achieve the climate goals set by the Paris Agreement.
4️⃣ Implementation of Actions
- Translate the objectives into an operational action plan, incorporating specific initiatives such as:
- Energy transition toward low-carbon renewable energy sources.
- Optimizing industrial processes to reduce energy consumption and greenhouse gas emissions.
- Development of eco-friendly products with a low carbon footprint.
5️⃣ Performance Monitoring and Continuous Adjustment
- Implement an annual evaluation system based on key indicators.
- Adjust plans based on the results obtained and changes in the context (new regulations, technological innovations, etc.).
Integrating ACT into the company's overall strategy
Rethinking Business Models
The ACT methodology encourages companies and organizations to transform their organizational and strategic approaches. This repositioning involves:
- 🔄 Reviewing business models:
Low-carbon solutions are being integrated at every level— whether in supply chains, distribution models, or marketing strategies. Adopting sustainable practices also involves accurately calculating emissions across the entire life cycle of products and services within the company’s scope, with a particular focus on energy consumption.
- 💡 Innovation in Products and Services:
The development of eco-friendly, low-emission products is becoming a priority to meet consumer expectations while minimizing environmental impact. This includes optimizing energy and resource efficiency while adapting to growing climate challenges, both in France and internationally.
- 🤝 Strengthen collaboration with stakeholders:
ACT promotes a collective approach that involves suppliers, customers, and partners in initiatives to reduce greenhouse gas emissions and energy consumption, with the goal of maximizing their effectiveness and reach, while expanding the scope of the initiative to include aspects specific to climate and the energy transition.
By rethinking their business models with the help of ACT, companies and organizations do more than just reduce greenhouse gas (GHG) emissions. They anticipate future trends, optimize their resource management—particularly in the area of energy—and strengthen their resilience in the face of market changes, whether local or related to international commitments such as those made by France.
Conditions for Successful Implementation
To implement the ACT methodology effectively, several prerequisites must be met, as indicated on page 20 of the ACT document:
- 📈 Executive Commitment:
Executive commitment is crucial for the implementation of the ACT methodology. Strong and visible support from leadership ensures that the low-carbon transition becomes a strategic priority for the entire organization, particularly in areas related to energy, emissions accounting, and climate issues.
- 🔗 Engaging Internal and External Stakeholders:
It is essential to involve all stakeholders —both internal and external—in the process. This includes key employees within the company, as well as suppliers, partners, and customers. Active collaboration is necessary to ensure the success of the low-carbon initiative at all levels of the organization, within the scope of the strategy.
- 🧑🏫 Skills and Human Resources:
The success of the ACT initiative depends on establishing a competent team dedicated to the low-carbon transition. Companies and organizations must train employees in the ACT methodology and provide ongoing support to those leading the effort, incorporating specific expertise in energy management and trajectory calculations.
- 📊 Data Quality and Availability:
Collecting reliable and detailed data on energy emissions and consumption is essential for accurately assessing a company’s carbon footprint. This includes access to accurate data on direct and indirect emission factors (Scopes 1, 2, and 3), as well as on future investments and existing practices.
- 🧩 External support and guidance:
The involvement of external consultants or specialized experts may be necessary to guide the company in implementing best practices and to ensure that the established objectives are aligned with scientific recommendations and climate-related requirements, such as those of the Paris Agreement.
Why Choose ACT? The Benefits for Businesses
A measurable reduction in climate impact
ACT offers a rigorous approach to developing and implementing an ambitious action plan. This enables companies to:
- ⚡ Reduce direct emissions (Scopes 1 and 2):
By optimizing resource use and adopting renewable energy sources.
For example, an industrial company can reduce its direct emissions by 30% by 2030 by installing new technologies or optimizing energy use at its facilities.
This approach is often based on the results of a carbon assessment, which precisely identifies the GHG emission sources that should be addressed as a priority.
- 🌱 Addressing indirect emissions (Scope 3):
This includes reducing the impacts associated with the supply chain, transportation, and business travel.
These greenhouse gas emissions, while complex to manage, often account for the majority of a company’s environmental impact.
The ACT methodology helps integrate the results of the carbon footprint assessment into a framework of strategic initiatives for these GHG emissions.
ACT also enables companies to measure their progress using specific metrics, ensuring the transparency and credibility of their climate commitments.
For example, in France, the company Vinci has succeeded in significantly reducing its GHG emissions as part of its climate initiative, as well as through its CSR strategy.
By streamlining its operations and implementing targeted measures, the company achieved a 40% reduction in its directCO₂e emissions between 2018 and 2023.
In addition, initiatives such as improving the energy efficiency of its construction sites and adopting low-carbon materials have helped reduce its carbon footprint while strengthening its resilience to the challenges posed by climate change.
The savings achieved through optimized energy and process management, as well as climate-friendly initiatives, contribute to the company's profitability.
A competitive advantage and greater resilience
Adopting ACT is not just about addressing climate challenges—it also strengthens businesses’ competitiveness and resilience.
- 🔒 Building Resilience to Climate Risks:
By identifying vulnerabilities in their supply chains or reducing their dependence on fossil fuels, companies can anticipate the economic constraints or physical disruptions associated with climate change.
- 💡 Creating New Economic Opportunities:
A commitment to a credible low-carbon strategy attracts discerning consumers, business partners, and investors who prioritize sustainability . Furthermore, these initiatives help meet the requirements of environmental regulations, thereby avoiding financial penalties. In France, carbon footprint assessments play a key role by providing the data needed to justify and guide these efforts.
Last but not least, ACT fits perfectly into a CSR strategy, transforming abstract commitments into concrete, measurable actions. This reinforces the company's credibility and positions it as a key player in the ecological transition.
The ACT methodology stands out as a powerful strategic tool for companies seeking to embark on a sustainable transition. It goes beyond simply identifying greenhouse gas emission factors or conducting a carbon assessment; rather, it provides a structured framework aligned with the requirements of the Paris Agreement, thereby addressing climate-related challenges.
By adopting ACT, companies do more than just reduce their environmental impact and business operations: they demonstrate leadership by building a future where innovation, responsibility, and CSR coexist with performance and competitiveness.







