Reducing the carbon footprint of cars used by employees for their commutes
The transportation sector is currently the leading source of carbon emissions in France, accounting for nearly 30% of the country’s total emissions, which are often measured in millions of TOE (tonnes of oil equivalent). For an organization committed to corporate social responsibility, the CO₂ emissions from its employees’ daily commutes can no longer be ignored. Although often overshadowed by direct emissions,the carbon footprint of employees’cars plays a massive role in Scope 3 of the organization’s overall carbon footprint.
So, how do we move from a simple observation—the environmental impact of gasoline-powered cars —to a concrete transition strategy? How can we turn a regulatory requirement into a tool for fostering employee engagement while reducingthe overallcarbon footprint of our vehicle fleet?
Contents
Understanding the Actual Impact of Gasoline-Powered Cars on the Carbon Footprint®
To initiate an effective transition, we must first analyze the source of these flows. All too often, calculatinga vehicle’s carbon footprintis limited tofuel consumptionat a given point in time. However, a rigorous approach requires examining the entirelife cycle—from design to recycling—to obtain a comprehensivecarbon footprint assessment of the vehiclethat includes the use of eachvehicle.
Life Cycle Assessment: Beyond the Exhaust Pipe
Contrary to popular belief, the definition ofa car’s carbon footprint is not limited solely to emissions produced while driving. A rigorous study, aligned withADEME’s methodologies, must take into account both upstream and downstream factors:
- The production phase: The extraction of raw materials (steel, aluminum, lithium for batteries) and assembly in the factory. We’re talking here aboutthe manufacturing carbon footprint, which is often the weak link in new models, whether they’re gasoline-powered cars or electric vehicles.
- The usage phase: Emissions resulting from combustion in gasoline or diesel engines, or from electricity generation in electric-motor vehicles. We sometimes overlook alternatives such as LPG orhydrogen, which have a different impact on the climate. The use ofhydrogen in heavy- and light-duty transportation is beginning to yield interesting data for the future of the energy mix.
End of life:Therecyclingof components or waste treatment—with varying recoveryrates—is a major challenge for the product’s overalllifespanand itsimpact on the climate. A high battery recycling rate can drastically reducethe carbon footprint of manufacturing future generations of products.
Gasoline vs. Diesel vs. Electric: The Impact of the Energy Mix
When comparing a conventional internal combustion engine (carbon footprint of a gas-powered car) to a cleaner alternative, the difference comes down tousage but, above all, to the country’s energy mix. In France, thanks to largely carbon-free electricity, electric cars have a much more favorable overall carbon footprint on average. However, this calculation depends on the battery capacity and the intensity of use: an electric car that is driven infrequently will have a harder time offsetting the carbon footprint associated with its initial manufacturing. It is therefore crucial to assess the tipping point at which electric vehicles truly become more environmentally friendly than internal combustion engines.
The Challenge of Manufacturing: An Initial Carbon Footprint
Car manufacturing is a resource- and energy-intensive process. The production of electric vehicles, in particular, generates an initial carbon footprint that is roughly twice that of a gasoline-powered model, primarily due to the extraction and refining of rare metals for batteries. Companies committed to CSR must therefore incorporate this comprehensive data into their carbon footprint® calculations to avoid falling into the trap of simplistic “greenwashing.” The goal is to steer a decarbonization trajectory based on physical realities and actual CO2 emissions data, while closely monitoringthe manufacturing carbon footprint and overall consumption.
Ways to Reduce Emissions: Toward Sustainable, Low-Carbon Transportation
Oncea car’s carbon footprinthas been measured and the sourcesof emissions identified, what actions can fleet managers and CSR directors take?
Breaking the Habit of Driving Alone: The Challenge of Changing Behavior
Reducing our carbon footprint also means reducing the number of cars on the road. Severalmobilityinitiatives have proven effective in reducingclimate impactandgreenhouse gas emissions:
- The Sustainable Mobility Plan (FMD): A powerful financial incentive to encourage cycling, scootering, or carpooling. This sustainable travel plan is a transition tool that has been widely embraced by companies.
- Intermodality: Facilitating the connection between gasoline- and diesel-powered cars and public transit networks (SNCF, urban transit systems) through park-and-ride facilities. Using public transit asa modeof transportation drastically reducesgreenhouse gas emissionsand fossil fuelconsumption.
- Telework: By avoiding two days of commuting per week, we mathematically reducethe carbon impact of vehiclesby 40% in this specific area, which instantly improves a vehicle’s GHG footprint.
Steering the Course with Decarbo’Target®
This is where technology becomes essential for managinggreenhouse gases. Reducinga car’s carbon footprint is not a one-time effort; it is a transformative project. The Decarbo’Target® module from Decarbo’Solution® was designed for this strategic management. Rather than simply reacting to figures from a past report, it allows decision-makers to simulate forward-looking scenarios forthe carbon footprintof theirelectricand internal-combustionvehiclesbased on reliabledata:
- “What will my carbon savings be if 30% of my internal-combustion fleet switches to electric next year?”
- “What is the actual impact on my car’s carbon footprint of implementing a carpooling plan?”
Decarbo’Target® transforms static data into a “forecast,” making it possible to align actual actions with the reduction targets established by international agreements.
Carbon footprint assessments have shown us that the greatest environmental impacts of our events are related to travel by spectators and participants, since we organize “off-stadium” and community-based competitions.
Measuring to Take Better Action: The Future of Carbon Reporting and the CSRD
With the introduction of the CSRD directive, managing environmental performance can no longer rely on rough estimates in spreadsheets. Transparency regarding Scope 3 emissions is becoming a legal requirement for a growing number of organizations in France.
Data Reliability: ADEME's Expertise
To ensure the reliability ofa vehicle’s carbon footprint calculation, it is essential to use reference databases. ADEME’s Carbon Databaseprovides the emission factors needed to convert kilometers traveled orfuelconsumptionintogreenhouse gas emissions. Certified data—including the specific characteristics of each battery—is the only solid foundation for a dialogue of trust with investors.
From Passive Data to Certified Engagement
Every company that emits CO2 must now report on its energy consumption. Transforming a GHG inventory into a sustainable decarbonization pathway requires rigor. By centralizing and automating the collection of this data, the company gains agility. It can thus identify the “hot spots” in its carbon footprint (often the commute in rural areas) and focus its investments where the carbon return on investment is highest.
Reducinga vehicle’s carbon footprintis a complex challenge that involves technology, psychology, and strategy. It requires rethinking the role of the private car and offering credible alternatives through an effective sustainable mobility package.
However, passenger travel is only one piece of the puzzle. To successfullydecarbonize transportation, it is essential to analyze each CO2 emissions by mode of transportation. If your organization also manages logistics flows, you’ll need to monitor CO2 emissions from road transport, CO2 emissions from maritime transport, andevenCO2 emissions from air travel, as these are subject to heavier taxation (ETS). It is through this comprehensive approach—supported by Decarbo’Solution®—that the companies of tomorrow will ensure their resilience.