Green IO with Gaël Duez explores how to reduce the environmental impact of our digital world. Twice a month, on a Tuesdays guests from across the globe share insights, tools, and alternative approaches, enabling all responsible technologists, within the Tech sector and beyond, to build a greener digital world, one byte at a time.
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Gael Duez Podcasts
Come on an insightful journey across business, sustainability, technology, strategy and architecture - listen to the people who are influencing the architecture of tomorrow. Hear from the global community for Enterprise, Business, Technology Architects and related roles who want to collaborate and learn from each other. Connect with Oliver Cronk on LinkedIn if you have thoughts on topics or would like to appear on the series. Find the YouTube channel at https://YouTube.com/ArchitectTomorrow/
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Human centric AI architecture with Darryl Carr and Selena Evans
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In a world drowning in AI announcements and breathless proclamations about technological transformation, Oliver brought together Selena Evans (attorney and certified business architect based in the USA) and Darryl Carr (enterprise architecture leader based in Australia) for an honest conversation about technology adoption (of course majoring on AI …
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# 70 Sustainability: A Strategic Advantage, (Not Just a Cost), with Sathpal Singh and Jo Masraff
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It’s time that we reframe sustainability as a criterion for success, not just a checkbox on a regulatory report. And on today’s episode of Green IO, Gaël is joined by Jo Masraff and Sathpal Singh, two domain experts who demonstrate how changing our approach to sustainability can be a key difference maker for businesses across any industry. Jo and S…
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#69 Big Tech carbon emissions by the millions with Cathleen Berger
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They say that numbers don’t lie… but what if we are looking at the wrong numbers to begin with? On today’s episode of Green IO, Gaël is joined by Cathleen Berger who is here to help us decipher why accurate emissions reporting is so crucial, and why Big Tech continues to make big mistakes when it comes to the figures they release. Because as the fo…
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#68 A dive into every GenAI rabbit hole with Wilco Burggraaf and Mark Butcher
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Over the last 3 months, several studies were published about GenAI and its environmental footprint. The most famous are Mistral AI’s life cycle analysis and Google’s study on Gemini. The opportunity and the conclusions of the Gemini prompt study were heavily debated in the Green IT field, including by two of the most respected thought leaders: Mark…
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#67 Can we be optimistic about AI sustainability? With Iuna Tsyrulneva
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The potential impact of Artificial Intelligence on our worsening climate crisis is certainly a hot topic, pardon the pun. Fortunately, we have an expert on today’s show to help us make sense of it all. Iuna Tsyrulneva is one of the leading voices in AI and sustainability. Well versed on both topics, Iuna holds a PhD in materials science, and works …
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#66 Data Centers and Water in the US: a Complex Story with Mohammad Islam and Shaolei Ren
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“We're living under a water stressed world. Maybe not today, but a certain time of the year.” This new reality stated by Dr Shaolei Ren questions both the resiliency and the water footprint of the data center industry. In this episode we bring an academic perspective on these questions with two of the most renowned experts in the field, Dr Shaolei …
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#65 Green IO London 2025 special episode in collaboration with Architect Tomorrow
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Today, we don’t have 1 or 2 guests but 10! In partnership with the YouTube channel Architect Tomorrow, we are glad to share with you snippets and interviews of the speakers who made the latest Green IO Conference in London a huge success last week. The audio quality has improved since last year but is still perfectible. Except for this, I hope you’…
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#64 Why we hate recycling with Elaine Brown and Ross Cockburn
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Elaine and Ross hate recycling. Both know first hand about our computers’ and smartphones’ life. About the wasted opportunities to better use the precious resources into it. Elaine Brown is the CEO of the Edinburgh Remakery who refurbished 295 laptops last year. She’s also a keen expert on the right to repair issues. Ross Cockburn is the Trustee of…
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#63.b AI & Energy Efficiency: just follow the money? with Anne Currie
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Anne Currie is the co-author of the acclaimed O’Reilly book “Building Green Software”, a pillar of the GSF, a veteran in the Cloud Industry and also a SF novelist with her series of panopticon books. Preparing her forthcoming keynote at Green IO London, she went all the way down into the rabbit hole of AI and energy efficiency. She investigated fro…
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Zoology to Systems Thinking with Jenny Wilson, Chief Architect at Kingfisher
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In this episode of Architect Tomorrow, Jenny Wilson, Chief Architect at Kingfisher PLC (the group includes brands such as B&Q, Screwfix, Castorama), discusses her journey from zoology and evolutionary anthropology to enterprise architecture. Jenny explains how her scientific background shapes her approach to technology ecosystems and covers: - Dive…
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#63a AI & Energy Efficiency: why was DeepSeek a defining moment? with Anne Currie
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Anne Currie is the co-author of the acclaimed O’Reilly book “Building Green Software”, a pillar of the GSF, a veteran in the Cloud Industry and also a SF novelist with her series of panopticon books. Preparing her forthcoming keynote at Green IO London, she went all the way down into the rabbit hole of AI and energy efficiency. She investigated fro…
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#62 Thirsty datacenters in the heart of Silicon Valley with Masheika Allgood
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A month ago, Google released its 2024 sustainability report. Its overall water consumption increased by 28% in a year. Less publicized than the data center energy boom, water is also pivotal for the Tech industry and data is even scarcer. To better understand this secret but serious love affair between big tech and water, what better location to in…
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#61 Scaling Green Software with Anita Schüttler
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What does it take to go beyond raising awareness in green software? To avoid checking just boxes? What is required to scale green software practices in a company? To discuss these issues, Gaël Duez welcomes Anita Schüttler on this episode “from the trenches”. Anita is a seasoned software engineer and expert on digital sustainability. She works as H…
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#60 Why Tech companies should not deprioritize future readiness with Rainer Karcher
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“Climate activist in a suit”. This is how Rainer Karcher describes himself. It is an endless debate between people advocating for the system to change from the outside and those willing to change it from the inside. In this episode Gaël Duez welcomes a strong advocate of moving the corporate world into the right direction from within? Having spent …
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Green Software Engineering with Wilco at Voxxed Days Amsterdam
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A conversation with Wilco Burggraaf, Principal Lead Green Software Engineering at High-Tech Innovators, exploring the practical side of green software engineering.In this episode, we discuss:How Wilco transitioned into sustainability after 20+ years in ITBuilding a 700-member Green Software Foundation meetup community in the Netherlands in just 8 m…
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#59 Debriefing Qcon Sustainability track with Erica Pisani
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How is sustainability covered in main tech conferences? Sure cybersecurity, DevOps, or anything related to SRE, is covered at length. Not to mention AI… But what room is left for the environmental impact of our job ? And what are the main trends which are filtered out from specialized conferences in Green IT such as Green IO, GreenTech Forum or eco…
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Why Data Centres Belong in Nursing Homes (Not Isolated Warehouses) with David from Leafcloud
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In this episode, Oliver speaks with David Kohnstamm from Leafcloud about a fundamental shift in how we think about data centre locations. Forget remote warehouses - the future of sustainable computing lies in nursing homes, apartment complexes, and anywhere with constant heat demand.David reveals why traditional data centres waste enormous amounts …
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#58b Avoided emissions thanks to Tech: the Vinted use case with Laetitia Bornes - Part 2
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Why is the model of a Nobel prize winner not necessarily good science? What is “good” modelling? Is access to information enough to change a system behavior? This episode is the second part of a long interview with Laetitia Bornes, a Doctor in Human-Computer Interaction, Systems Engineering and Systemic Design who is one of the co-authors of a rese…
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Using waste heat from data centres: Deep Green - Mark Bjornsgaard
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Please note: We apologise for the audio and video quality in this episode - as Oliver mentions, "we're a bit hesitant here because we're kind of squatting in part of Tech Show London trying to record a conversation" - but we couldn't miss the opportunity to capture this discussion!In this episode of Architect Tomorrow, we catch up with Mark from De…
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#58a Avoided emissions thanks to Tech: the Vinted use case with Laetitia Bornes - Part 1
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Can a digital company be “carbon negative”? What should we think of these claims of “tons of carbon avoided” coming from 2nd hand platforms such as Vinted or Back Market? Dr Laetita Bornes conducted research on Vinted claims, investigating its data sources and the methodology used with her colleague David Ekchazer. Their findings were surprising, e…
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#57 Greening Intelligence: Bridging Infrastructure and Governance for a Sustainable AI Future with Pr. PS Lee and Pr. Heng Wang
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Description “It's always a case of fit for purpose, or what we call a proper engineering.” Some down-to-earth facts and analysis were coined by Pr PS Lee, one of the world's top experts in liquid cooling - and Pr. Heng Wang - a renowned expert in digital governance - while cross-analysing Singapore’s main challenges from an infrastructure and gover…
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Futuring Architectures: Ecosystems, AI and Mindset Shifts
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In this episode, Oliver Cronk talks with Ron Kersic about "Futuring Architectures" and how architects can navigate today's rapidly changing digital landscape. Ron, a self-described "recovering programmer" now at ING's Tech Strategy group, discusses his journey from early programming to enterprise architecture. He explains his concept of "Futuring A…
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#56 Building Green Software, the one year anniversary with Sarah Hsu
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A year ago, Building Green Software was released by O’Reilly. Since Tim Frick’s book “Designing for sustainability” (8 years ago!), O’Reilly didn’t publish anything fully focusing on sustainability. So, it’s a fair statement that this book was long awaited. But a year is an eternity in IT. This is why Sarah Hsu, one of its 3 co-authors as well as t…
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#55 Decarbonizing Kubernetes with Flavia Paganelli and Niki Manoledaki
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Did containerisation ship away our environmental responsibility? Containers come with the promise of automation, scalability and reliability. The question is how to add sustainability to the list without breaking its other benefits. To talk about these challenges, Gaël Duez welcomes Flavia Paganelli and Niki Manoledaki, 2 experts in Kubernetes who …
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# 54 Agility and Sustainability with Joanna Masraff and Joanne Stone
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"We are 100% convinced that IT sustainability matters but we can’t add more non business requirements, we have agile teams." This often heard sentence from product managers or CPOs, led to this dedicated episode on agility and sustainability where host Gaël Duez welcomes 2 seasoned agile coaches: Joanne Stone, the founder of Agilist 4 planet and th…
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#53 Scaling GreenOps at Back Market with Dawn Baker
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Changing its Cloud provider is never small potatoes, especially when a platform operates up to 40,000 containers and has about 4 million unique visitors a day to its website. Yet Back Market made the move from AWS to Google Cloud Platform motivated primarily by … sustainability concerns! In this episode its CTO, Dawn Backer, chats with Gaël Duez an…
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#52 Sustainability at WordPress: an update with Csaba Varszegi, Nahuai Badiola, and Nora Ferreiros
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“Today I learned that we have a sustainability team.Thank you for your effort in this area, looking at results of the team so far, and the ROI of time invested, it's probably a good time to officially dissolve the team entirely”. In 3 sentences, almost 3 years of work from the WordPress Sustainability Group vanished and their Slack channel archived…
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#51 Exploring the digital revolution paradox from a UN perspective with Paz Pena and Pablo José Gamez Cersosimo
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It’s a 252 pages report with the foreword of António Guterres, the Secretary-General of the United Nations, talking about digitalization and sustainability. And, for once, it’s not another report from the UN stating “let’s digitize everything to boost sustainability”. Quite the contrary as it states a “unequal ecological exchange between developed …
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