A conference powered by 
Green IO Paris
Building European Green IT
Green IO is where Tech leaders join forces to overcome unprecedented sustainability challenges in IT. With the explosive adoption of generative AI, governmental pushbacks against climate policies and...
December 9 to 11, 2025
CNIT Forest - La Défense
40+
speakers
800+
Attendees
20
countries
Meet the speakers
... and more to come!
Agenda
-
Day 1 (Workshop Day)
Tuesday 9th December 2025
10:50 to 11:15WorkshopSee moreGreenpixie workshop: Title TBA
In collaboration with
11:20 to 11:45WorkshopICT & cloud footprint data at scale: an API for digital sustainability through LCA
This workshop introduces participants to Resilio DB an industry-leading footprint database forLife Cycle Assessment (LCA) of digital product & services. Designed to overcome the challenges ofperforming LCAs at scale Resilio DB API provides reliable & easy to use consistent footprint data for the ICT sector. Participants will first explore the web UI before gaining hands-on experience with the REST APIendpoints through a guided Postman collection. You'll learn how to leverage Resilio DB tosearch and assess various digital devices from servers/VMs to end-user devices or customconfigurations.In collaboration with
11:50 to 12:15WorkshopSopht's workshop: Title TBA
In collaboration with
12:50 to 14:00Lunch Break & Executive Lunch
14:00 to 14:25WorkshopElectricity Maps workshop: Title TBA
In collaboration with
-
Day 2 (Conference Day)
Wednesday 10th December 2025
09:40 to 09:5009:50 to 10:20KeynoteSee moreTitle TBA
10:20 to 10:50Coffee Break & Networking
10:50 to 11:15TalkExclusive updates: environmental impact of AI servers worldwide
11:20 to 11:30TalkQuick industry announcements in IT Sustainability
11:30 to 12:50Sustainable Digital ChallengeFinal Pitches from 9 companies!
Right from the trenches teams will pitch their achievement in reducing the environmental footprint of their Tech stack. For the AI challenge the contenders are: SNCF, BPI, Groupama and AXA. For the web challenge the contenders are INSEE, Younited, Botify.com, and Enedis.12:50 to 14:00Lunch Break & Networking
BOOK SIGNINGSee moreBook Signing
14:00 to 14:2514:30 to 14:55TalkSee moreHow Amadeus is leveraging & contributing to open-source to minimize its IT footprint
15:00 to 15:55Sustainable Digital Challenge JurySustainable Digital Challenge: Award Ceremony
16:00 to 16:30Coffee Break & Networking
17:00 to 17:25TalkSee moreThe invisible cloud: solving the Kubernetes carbon mystery
Kubernetes has a dirty secret: its power -abstraction, dynamic scheduling- makes its carbon footprint vanish. How do you solve a crime with an invisible culprit? Become a cloud detective! Using tools like Kepler and KEIT, we'll uncover energy waste, expose overprovisioning, and plot a course for a leaner cluster. Leave with a practical playbook to reduce your cloud emissions.17:30 to 17:5518:15 to 20:00Green IO x Tast’IT Apéro
-
Day 3 (Conference Day)
Thursday 11th December 2025
09:30 to 09:55OPENING REMARKSOpening remarks
10:00 to 10:55KeynoteSee moreHot takes, cool planet: debating AI sustainability
11:00 to 11:30Coffee Break & Networking
11:30 to 11:5512:00 to 12:25TalkSee moreBeyond PUE – why datacenter efficiency is all about IT
12:30 to 12:55TalkSee moreAnalysing IT Hardware performance for circularity
IT hardware is a significant investment for companies in both money and environmental impact. In the data centre IT accounts for up to 85% of the total energy draw and requires considerable amounts of carbon, critical raw materials and water to produce. Profiling, benchmarking and understanding IT performance is crucial for making the best decisions on what to buy, how to use it and when to replace or change. This talk will provide a complete understanding of how to use performance metrics such as ITEEsv to make data led decisions on IT projects and will demonstrate how IT performance has evolved over time and how use impacts performance.13:30 to 14:40Lunch Break & Networking
14:40 to 15:05Panel DiscussionSee moreHow to measure the environmental footprint of AI?
15:10 to 15:35TalkSee moreImposing AI: Deceptive design patterns against sustainability
Generative AI is being massively deployed in digital services, at a scale that will result in significant environmental harm. We document how tech companies are transforming established user interfaces to impose AI use and show how and to what extent these strategies fit within established deceptive pattern categories. We identify two main design strategies that are implemented to impose AI use in both personal and professional contexts: imposing AI features in interfaces at the expense of existing non-AI features and promoting narratives about AI that make it harder to resist using it.15:40 to 16:05TalkSee moreWe need to talk about AI, sustainable AI
Since November 2022, we’ve heard a lot about Generative AI and how powerful this tool is and will be. But with great power comes great responsibility (and often, great environmental costs). In fact, it’s estimated that AI alone could account for 14% of total global emissions by 2040, while its water usage may hit 6.6 billion cubic meters by 2027. However, sustainability is not just about the environment: it's also about people, ethics and transparency. We will explore some of the current issues surrounding such powerful tools in order to pave the way for true innovation.16:10 to 16:35TalkSee moreMore than carbon: the full environmental footprint of AI
The rapid expansion of AI has intensified concerns about its environmental sustainability, yet current assessments predominantly focus on operational carbon emissions. Our study presents the first comprehensive multi-criteria lifecycle assessment of AI training, examining 16 environmental impact categories through primary data collection and elemental analysis of the Nvidia A100 GPU. Carbon-only accounting fundamentally misrepresents AI's globally distributed impact profile, creating a dangerous blind spot in the sustainability discourse. Sustainable AI development demands fundamental changes in how we assess, communicate, and govern AI's environmental impacts.16:40 to 17:0517:40 to 18:05TalkSee moreLimits to the evidence on AI’s climate benefits and their implications
What evidence supports AI’s positive impact on the environment? Since 2018, several reports have explored AI’s potential, but their findings are contested in academic and policy debates. The first part of this presentation reviews the different forms of evidence available, which comes mainly from expert surveys, economic models, and catalogues of use cases - mostly focused on machine learning rather than generative AI. The second part of the presentation examines the implications: weak accountability mechanisms make such evidence unreliable and hinder efforts to assess impacts at scale.
“The blossoming of tools and initiatives in greening IT is a heart-warming signal from the digital sector. More than ever sharing experience and insights is pivotal for actors to ramp-up their effort.”
Gaël Duez
Green IO Founder
Meet our partners
Members of the Paris Green IT ecosystem as well as our corporate partners will be available to exchange with you on how to accelerate your digital sustainability journey.
Global Premium
Global Champion
CHAMPION
Community
Global Non Profit
Non Profit
About Apidays
Apidays is the world's leading series of API conference. In today’s intricate digital landscape, APIs have emerged as powerful conduits for innovation, bridging the gaps and unlocking new realms of possibility.
Why they attended our past Paris editions
“Sustainability is one of the most important subjects facing technology companies today. The Green IO conference is without doubt one of the best places to learn about industry best practices, to exchange ideas and to discuss with others facing similar challenges.”
Diarmuid GILL, CTO (Criteo)“The Green IO conference in Paris this year was highly appreciated for its practical approaches to digital sustainability, grounded in the real-life experiences and shared insights of development teams and architects.”
Maija Fournier, Platform Architect (OECD)“It was a pleasure to participate in the Green IO 2023 forum! In the very technophile setting of the API Days, a great day of acculturation on the climate issues of digital activity. Top-notch speakers to raise awareness, engage the dynamics of eco-responsibility and illustrate concrete initiatives from players in digital, travel or industry. Positive challenge!”
Cyril Casenave, Head Of API & Digital Assets (Club Med)
December 9 to 11, 2025
CNIT Forest - La Défense