Our approach is based on the quality of carbon data.

We have developed a measurement methodology that aligns with the latest version 1.2 of the Global Media Sustainability Framework, to which we co-contributed with industry experts.

Transforming carbon data into a media performance indicator.

Producing data reliable enough to be used in marketing decision-making.

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Our carbon measurement methodology aligns with industry standards.
  • Offline and digital media > Global Media Sustainability Framework v1.2.
  • Web eco-design > Afnor & HB 491. Compliance with over 200 checkpoints.
  • Creative production > ISO 14067 and PAS 2050 standards.
  • SRI / ADEME compliance enhanced with real-time environmental data.
  • Conformité ISO 14067 & PAS 2050. 

Our 3-step support program

01

Measure your carbon emissions

02

Move from measurement to action

03

Deploy to scale

01 Mesure d’émissions

Calculate your website’s environmental footprint

Our carbon calculator analyzes the technical elements loaded when a page is viewed (content size, server calls, scripts, etc.).

1

Enter your website's URL

Estimate the carbon impact of a website in France, the United States, and Canada based on its URL
2

View the results

Emissions per page view in gCO2e and emissions per million visits in kgCO2e
À vous de tester l’empreinte carbone de votre site internet avec notre calcuteur!
+21%
Website loading speed Q1 2026 vs. 2025 + L'Oréal Canada logo
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02 Programme de réduction

Our first easy-to-implement recommendations

File weight

Achieving carbon reduction through asset compression

Reduce asset weight without compromising performance
Posting a video in 720p can generate 40% fewer emissions than in 1080p
Higher resolutions don’t always generate additional benefits on smartphone screens
Meta, TikTok, Youtube, Snapchat, DV 360 approve the 720p format

Network

Distributing a campaign via Wi-Fi is less energy-intensive than using cellular data

Wifi versus cellular data
WiFi targeting is 5× less carbon
More engaged viewers

Video Length

Exploring the difference between the average watch time and video length to better match your users attention span

Identify the most effective optimizations for your campaigns

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+225%
in return on ad spend (ROAS)
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03 Formation de vos équipes

Your partner in responsible marketing

To ensure that carbon footprinting doesn’t remain a one-off issue, we offer training sessions to permanently embed best practices.

Our various modules:

Training adapted to your organization’s maturity level
– Fundamentals of responsible marketing
– Expert workshops
– Sessions for executives

Fundamentals of responsible marketing

Equip your teams with the knowledge needed to drive change

Expert workshop

Activate carbon intelligence to boost business performance

Sessions for executives

Understand industry trends and prepare your organization for the future

Do you want to train your teams?

Contact us

+22%
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Cosmo5, the committed marketing & media group

We are one of the first agencies to integrate media-related emissions into our 2050 decarbonization roadmap.

  • Net Zero targets validated by SBTi
  • EcoVadis 2025 Gold Medal
  • ESG Report completed for the 3rd consecutive year

Discover our world

Do you have any questions?

We support the measurement and reduction of the carbon footprint of your entire offline and digital marketing ecosystem: media campaigns (Search, Social, Display, Programmatic, TV, Outdoor), influencer marketing, eco-design of e-commerce websites, mobile applications, email marketing, AI, and training for your teams...
Our methodology takes into account the entire advertising distribution chain: volume of impressions, creative formats, platforms used, content storage consumption in data centers, data transfers, distribution networks, and the energy consumption of users' devices. We thus analyze the actual emissions generated by each campaign.
We assess emissions related to hosting, data storage, network transfers, displayed content (images, videos, scripts), and the energy consumption of devices used to access the site. This approach helps identify key areas for optimization.
Yes. Our results are designed to support your carbon reduction trajectories, ESG indicators, and extra-financial reporting processes. Our methodology is based on recognized standards and provides transparent, auditable, and actionable data for sustainability teams.

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Award-winning expertise

Best Agency in Responsible Marketing
Paris 2025
Best Practice in Sustainability - Agency - Americas
London 2024
Les Cas d’Or Performance Marketing Logo
Montreal 2025
Best Practices in the Beauty Sector
London 2025
Responsible Influence Marketing
Paris 2025