Best Software Carbon Emissions Podcasts (2025)

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Root and Branch and SCI-Web 1:00:48

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4d ago1:00:48

1:00:48

Host Chris Adams talks with Adam Newman and Oli Winks of Root & Branch about their new Software Carbon Intensity Web model for measuring the real carbon footprint of websites. They break down why current methods miss the mark, how their bottom-up approach captures actual energy use across servers, networks and devices, and why better measurement ca…

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The Week in Green Software: Thirsty AI 47:15

11d ago47:15

47:15

When artificial intelligence grows, so does its thirst. Chris Skipper hosts sustainability expert Valeria Salis, digging into the hidden cost of powering AI: the massive volumes of water needed to cool the data centers. From submerged servers off China’s coast to European communities pushing back on tech infrastructure, they discuss the environment…

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Season 3, Episode 5: New Paths for Leadership in Trade, with GMF's Johannah Christensen 28:44

13d ago28:44

28:44

Just days after the IMO’s decision to postpone the net-zero framework, the Global Maritime Forum (GMF) held its annual summit in Antwerp, Belgium. An opportunity to bring industry leaders back in the same room to confront uncertainty and chart a path forward at a decisive time. Johannah Christensen, CEO at GMF, was at the heart of the action. Just …

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Season 3, Episode 4: What now? After the IMO, the critical role of fuel suppliers in the energy transition with Maria Skipper Schwenn from Bunker Holding. 27:18

1M ago27:18

27:18

When the International Maritime Organization (IMO) postponed adoption of its long-awaited Net Zero Framework this October, the decision shook up power dynamics and strategies across the industry. In this episode, we unpack what happened inside and outside the negotiation room, and what it means for shipping’s path to zero emissions. Beyond regulato…

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Season 3, Episode 3: The Argument for Regulatory Ambition, with Aoife O’Leary, from Opportunity Green 28:17

2M ago28:17

28:17

In this episode, host Lora Jakobsen sits down with Aoife O’Leary, the CEO and founder of Opportunity Green, about why regulation could be the key to achieving zero. Drawing on her extensive background in law, and her work bringing together policy and technical experts with economists, and lawyers, Aoife makes a case for ambition in regulation, argu…

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Software Architecture for Sustainability 44:22

2M ago44:22

44:22

Guest host Anne Currie speaks with Karthik Vaidhyanathan, Assistant Professor at IIIT Hyderabad, about integrating sustainability into AI development. They discuss how the world can balance digital growth with renewable energy goals and how AI systems can be designed to be energy-efficient rather than energy-intensive. Karthik shares insights from …

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The Week in Green Software: Sustainability along the DevOps Lifecycle 58:44

2M ago58:44

58:44

Guest host Anne Currie is joined by software engineer and sustainability advocate Julian Gommlich to explore how green practices can be embedded throughout the DevOps lifecycle. They discuss how modern operational practices like continuous delivery, automation, and agile iteration naturally align with sustainability goals, helping teams build more …

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Building Energy Awareness into Operating Systems 1:05:29

2M ago1:05:29

1:05:29

Host Chris Adams speaks with Didi Hoffmann, CTO of Green Coding Solutions, about building energy awareness into operating systems and making sustainability a first-class concern in software development. They discuss Didi’s journey from Linux kernel programming to climate-focused tech and many more! Learn more about our people: Chris Adams: LinkedIn…

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Season 3, Episode 2: Future-proofing Maritime - Today’s Leadership is Tomorrow’s Competitive Advantage with Alexander Saverys 29:56

3M ago29:56

29:56

In this episode, host Lora Jakobsen speaks with Alexander Saverys, CEO of CMB.TECH, about what it means to truly future-proof shipping. Alexander Saverys is a leader who isn’t afraid to take risks. With seven generations of family history in maritime, he has transformed the Compagnie Martime Belge from a traditional shipowner into one of the most f…

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Sustainable AI 43:34

3M ago43:34

43:34

Guest host Anne Currie speaks with Boris Gamazaychikov, Head of AI Sustainability at Salesforce, about aligning artificial intelligence with environmental responsibility. They explore the wide range of energy impacts across AI models, the development of the AI Energy Score benchmarking tool, and why transparency is essential for sustainable choices…

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Season 3, Episode 1: Industry Practices & Resilience in the Age of Uncertainty, with Julian Bray from TradeWinds 34:45

3M ago34:45

34:45

After laying the groundwork in its first two seasons, Navigating Zero returns for Season 3, with a bold new focus: rebuilding the maritime ecosystem from within. We’ve identified the origins of the zero carbon movement, and the engines of change; now it’s time to make new connections, to transform our industry. In this season opener, host Lora Jako…

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Backstage: The Green Software Movement Platform 29:44

3M ago29:44

29:44

WIN FREE TICKETS TO GREEN IO LONDON: CLICK THIS LINK AND COMMENT BELOW TO WIN Learn more about our people: Chris Skipper: LinkedIn | Website Gosia Fricze: LinkedIn | Website Find out more about the GSF: The Green Software Foundation Website Sign up to the Green Software Foundation Newsletter Resources: Green Software Movement | GSF [04:33] Green So…

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The Week in Green Software: AI Energy Scores & Leaderboards 1:04:39

4M ago1:04:39

1:04:39

Host Chris Adams is joined by Asim Hussain to explore the latest news from The Week in Green Software. They look at Hugging Face’s AI energy tools, Mistral’s lifecycle analysis, and the push for better data disclosure in the pursuit for AI sustainability. They discuss how prompt design, context windows, and model choice impact emissions, as well as…

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LLM Energy Transparency with Scott Chamberlin 1:00:44

4M ago1:00:44

1:00:44

In this episode of Environment Variables, host Chris Adams welcomes Scott Chamberlin, co-founder of Neuralwatt and ex-Microsoft Software Engineer, to discuss energy transparency in large language models (LLMs). They explore the challenges of measuring AI emissions, the importance of data center transparency, and projects that work to enable flexibl…

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Real Efficiency at Scale with Sean Varley 47:30

5M ago47:30

47:30

Anne Currie is joined by Sean Varley, Chief Evangelist and VP of Business Development at Ampere Computing, a leader in building energy-efficient, cloud-native processors. They unpack the energy demands of AI, why power caps and utilization matter more than raw compute, and how to rethink metrics like performance-per-rack for a greener digital futur…

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Real Time Cloud with Adrian Cockcroft 1:18:37

5M ago1:18:37

1:18:37

Chris Adams is joined by Adrian Cockcroft, former VP of Cloud Architecture Strategy at AWS, a pioneer of microservices at Netflix, and contributor to the Green Software Foundation’s Real Time Cloud project. They explore the evolution of cloud sustainability—from monoliths to microservices to serverless—and what it really takes to track carbon emiss…

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Backstage: Software Standards Working Group SCI 16:06

6M ago16:06

16:06

In this Backstage episode of Environment Variables, podcast producer Chris Skipper highlights the Green Software Foundation’s Software Standards Working Group—chaired by Henry Richardson (WattTime) and Navveen Balani (Accenture). This group is central to shaping global benchmarks for sustainable software. Key initiatives discussed include the Softw…

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Environment Variables Year Three Roundup 25:20

6M ago25:20

25:20

It’s been three years of Environment Variables! What a landmark year for the Green Software Foundation. From launching behind-the-scenes Backstage episodes, to covering the explosive impact of AI on software emissions, to broadening our audience through beginner-friendly conversations; this retrospective showcases our mission to create a trusted ec…

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Open Source Carbon Footprints 42:35

6M ago42:35

42:35

Chris Adams is joined by Thibaud Colas; product lead at Torchbox, president of the Django Software Foundation, and lead on Wagtail CMS. They explore the role of open source projects in tackling digital carbon emissions and discuss Wagtail's pioneering carbon footprint reporting, sustainable default settings, and grid-aware website features, all ena…

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Cloud Native Attitude 52:07

6M ago52:07

52:07

Environment Variables host Anne Currie welcomes Jamie Dobson, co-founder of Container Solutions and author of the upcoming book Visionaries, Rebels and Machines. Together, they explore the history and future of cloud computing through the lens of sustainability, efficiency, and resilience. Drawing on insights from their past work, including The Clo…

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How to Explain Green Software to Normal People 46:27

7M ago46:27

46:27

Host Chris Adams speaks with James Martin about how to communicate the environmental impact of software to a general audience. Drawing on his background in journalism and sustainability communications, James shares strategies for translating complex digital sustainability issues into accessible narratives, explains why AI's growing resource demands…

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Why You Need Hardware Standards for Green Software 50:34

7M ago50:34

50:34

Chris Adams is joined by Zachary Smith and My Truong both members of the Hardware Standards Working Group at the GSF. They dive into the challenges of improving hardware efficiency in data centers, the importance of standardization, and how emerging technologies like two-phase liquid cooling systems can reduce emissions, improve energy reuse, and e…

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Cloud Infrastructure, Efficiency and Sustainability 55:13

7M ago55:13

55:13

Host Anne Currie is Joined by the esteemed Charles Humble, a figure in the world of sustainable technology. Charles Humble is a writer, podcaster, and former CTO with a decade’s experience helping technologists build better systems—both technically and ethically. Together, they discuss how developers and companies can make smarter, greener choices …

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Backstage: Green AI Committee 18:01

8M ago18:01

18:01

In this special backstage episode of Environment Variables, producer Chris Skipper spotlights the Green AI Committee, an initiative of the Green Software Foundation launched in 2024. Guests Thomas Lewis and Sanjay Podder share the committee’s mission to reduce AI's environmental impact through strategic focus on measurement, policy influence, and l…

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The Economics of AI 34:35

8M ago34:35

34:35

Chris Adams sits down in-person with Max Schulze, founder of the Sustainable Digital Infrastructure Alliance (SDIA), to explore the economics of AI, digital infrastructure, and green software. They unpack the EU's Energy Efficiency Directive and its implications for data centers, the importance of measuring and reporting digital resource use, and w…

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OCP, Wooden Datacentres and Cleaning up Datacentre Diesel 1:01:26

8M ago1:01:26

1:01:26

Host Chris Adams is joined by special guest Karl Rabe, founder of WoodenDataCenter and co-lead of the Open Compute Project’s Data Center Facilities group, to discuss sustainable data center design and operation. They explore how colocating data centers with renewable energy sources like wind farms can reduce carbon emissions, and how using novel ma…

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GreenOps with Greenpixie 46:00

8M ago46:00

46:00

Host Chris Adams sits down with James Hall, Head of GreenOps at Greenpixie, to explore the evolving discipline of GreenOps—applying operational practices to reduce the environmental impact of cloud computing. They discuss how Greenpixie helps organizations make informed sustainability decisions using certified carbon data, the challenges of scaling…

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The Week in Green Software: Data Centers, AI and the Nuclear Question 43:49

9M ago43:49

43:49

Host Anne Currie is joined by the seasoned Chris Liljenstolpe to talk about the latest trends shaping sustainable technology. They dive into the energy demands of AI-driven data centers and ask the big question around nuclear power in green computing. Discussing the trajectory of AI and data center technology, they take a look into the past of anot…

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Backstage: Green Software Patterns 11:45

9M ago11:45

11:45

In this episode, Chris Skipper takes us backstage into the Green Software Patterns Project, an open-source initiative designed to help software practitioners reduce emissions by applying vendor-neutral best practices. Guests Franziska Warncke and Liya Mathew, project leads for the initiative, discuss how organizations like AVEVA and MasterCard have…

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The Week in Green Software: Sustainable AI Progress 50:34

9M ago50:34

50:34

For this 100th episode of Environment Variables, guest host Anne Currie is joined by Holly Cummins, senior principal engineer at Red Hat, to discuss the intersection of AI, efficiency, and sustainable software practices. They explore the concept of "Lightswitch Ops"—designing systems that can easily be turned off and on to reduce waste—and the impo…

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AI Energy Measurement for Beginners 56:58

9M ago56:58

56:58

Host Chris Adams is joined by Charles Tripp and Dawn Nafus to explore the complexities of measuring AI's environmental impact from a novice’s starting point. They discuss their research paper, A Beginner's Guide to Power and Energy Measurement and Estimation for Computing and Machine Learning, breaking down key insights on how energy efficiency in …

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The Week in Green Software: Transparency in Emissions Reporting 53:17

10M ago53:17

53:17

For this episode of TWiGS, Chris and Asim discuss the latest developments in emissions reporting, AI energy efficiency, and green software initiatives. They explore the AI Energy Score project by Hugging Face, which aims to provide an efficiency benchmark for AI models, and compare it with other emissions measurement approaches, including the Softw…

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How to Tell When Energy is Green with Killian Daly 1:00:40

10M ago1:00:40

1:00:40

In this episode, host Chris Adams is joined by Killian Daly, Executive Director of EnergyTag, to explore the complexities of green energy tracking and carbon accounting. They discuss the challenges of accurately measuring and claiming green energy use, including the flaws in current carbon accounting methods and how EnergyTag is working to improve …

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Backstage: Impact Framework 27:39

10M ago27:39

27:39

This episode of Backstage focuses on the Impact Framework (IF), a pioneering tool designed to Model, Measure, siMulate, and Monitor the environmental impacts of software. By simplifying the process of calculating and sharing the carbon footprint of software, IF empowers developers to integrate sustainability into their workflows effortlessly. Recen…

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Backstage: Carbon Aware SDK 12:31

11M ago12:31

12:31

In this episode, we go behind the scenes of the Carbon Aware SDK, a groundbreaking tool enabling developers to reduce software emissions by running workloads where and when energy is greenest. Featuring insights from Vaughan Knight, chair and project lead of the SDK, the episode dives into its origins, real-world applications, challenges, and miles…

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Deep Green Technologies 45:15

11M ago45:15

45:15

In this episode of Environment Variables, host Chris Adams sits down with Mark Bjornsgaard of Deep Green to explore a transformative approach to data center design and sustainability. Mark shares insights into how Deep Green reimagines traditional data centers by co-locating them in urban areas to provide heat reuse for facilities like swimming poo…

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Finding Signal Amongst the Noise in Carbon Aware Software 35:15

11M ago35:15

35:15

In this episode of Environment Variables, host Chris Adams is joined by Tammy Sukprasert, a PhD student at the University of Massachusetts Amherst, to dive deep into her research on carbon-aware computing. Tammy explores the concept of shifting computing workloads across time and space to reduce carbon emissions, focusing on the benefits and limita…

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The Cloud and the Climate: Navigating AI-Powered Futures 35:44

12M ago35:44

35:44

Environment Variables host Chris Adams is joined by Jo Lindsay Walton, a senior research fellow at the Sussex Digital Humanities Lab and co-author of the report The Cloud and the Climate: Navigating AI-Powered Futures. They delve into the intersection of climate and AI, exploring the environmental impact of AI technologies and the challenges of dec…

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Season 2, Episode 10: Banking's Role in Maritime Sustainability with Michael Parker and Paul Taylor 39:16

12M ago39:16

39:16

Banks play a pivotal role in advancing the green transition within the shipping industry. But how can these two critical sectors collaborate more effectively and foster greater transparency? In this episode, Lora Jakobsen, Chief Sustainability Officer at ZeroNorth, engages in a compelling discussion with Michael Parker, Global Head of Shipping at C…

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Green Networking with Carlos Pignataro 39:51

1y ago39:51

39:51

In this episode of Environment Variables, Anne Currie welcomes Carlos Pignataro, a leading expert in sustainable network architecture, to explore how networks can balance energy efficiency with performance and resilience. Carlos shares insights from his career at Cisco and beyond, including strategies for reducing emissions through dynamic software…

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The Quantum Entanglement of Software Sustainability with Wilco Burggraaf 52:23

1y ago52:23

52:23

In this episode of Environment Variables, host Anne Currie speaks to Wilco Burggraaf, a lead green practitioner and architect at HighTech Innovators, for an engaging discussion on integrating sustainability into software development. Wilco shares his journey into green software, the inspiration behind his innovative workshops, and his efforts to bu…

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Season 2, Episode 9: Insights & Outlook for the Economy and Global Trade with James Pomeroy 38:06

1y ago38:06

38:06

The outlook for the global economy remains both mixed and uncertain. Amid this complexity, which long-term trends are poised to shape the future of global trade? In this episode, Lora Jakobsen, Chief Sustainability Officer at ZeroNorth, is joined by James Pomeroy, a Global Economist at HSBC with expertise in long-term economic trends. James special…

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The Week in Green Software: Powering AI on Atomic Energy 54:54

1y ago54:54

54:54

TWiGS host Anne Currie is joined by Stefana Sopco, Marketing Manager at PortXchange and a passionate climate activist, for an insightful discussion on the intersection of AI, sustainability, and the maritime industry's decarbonization journey. Stefana shares how PortXchange leverages green technology to help ports achieve net-zero emissions through…

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The Week in Green Software: Wooden Data Centers 55:37

1y ago55:37

55:37

This Week in Green Software, host Chris Adams and Asim Hussain, Executive Director of the GSF discuss the latest developments in sustainable software, exploring topics like Microsoft's innovative use of cross-laminated timber in data centers to reduce embodied carbon, the environmental challenges of generative AI hardware, and the groundbreaking Re…

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Season 2, Episode 8: Pragmatism as a Strategy in the Energy Transition with Mikael Skov 28:02

1y ago28:02

28:02

Tanker markets are highly influenced by geopolitical upheaval and macro-economic trends. In such a volatile environment, how can companies meet current demands, while staying on track advancing the energy transition? In this episode, Lora Jakobsen, Chief Sustainability Officer at ZeroNorth, sits down with Mikael Skov, CEO of Hafnia, one of the worl…

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Shaping Web Sustainability with the W3C 36:41

1y ago36:41

36:41

In this episode of Environment Variables, host Chris Adams dives into the evolving landscape of sustainable web development with Alexander Dawson and Tzviya Siegman from the World Wide Web Consortium (W3C). Dawson and Siegman discuss the W3C’s efforts to develop Web Sustainability Guidelines (WSG), a comprehensive set of evidence-based practices ai…

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Backstage: Awesome Green Software 9:28

1y ago9:28

9:28

In this episode of Backstage, we go backstage with the Awesome Green Software (AGS) project, a pioneering initiative from the Green Software Foundation’s Open Source Working Group. Project leads Ahmad Antar and Abid Ali, along with contributor Josh Rauvola, share how AGS is building a centralized platform for developers to access tools, libraries, …

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Remembering Abhishek Gupta: How does AI and ML Impact Climate Change? 43:07

1y ago43:07

43:07

In this episode, we honor the memory of Abhishek Gupta, who was an instrumental figure in the Green Software Foundation and a Co-Chair of the Standards Working Group. Abhishek's work was pivotal in the development of the Software Carbon Intensity (SCI) Specification, now adopted globally. His tireless efforts shaped the future of green software, le…

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Backstage: TOSS Project 14:20

1y ago14:20

14:20

In this episode of Environment Variables, host Chris Skipper introduces "Backstage," a new segment offering behind-the-scenes insights into the Green Software Foundation's key projects. The episode highlights the "Transforming Organizations for Sustainable Software" (TOSS) project, led by Pindy Bhullar, which aims to embed sustainable practices acr…

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The Week in Green Software: The Sustainable Data Paradox 42:45

1y ago42:45

42:45

This Week in Green Software, the affable Anne Currie is joined by Sara Bergman, Senior Software Engineer at Microsoft and co-author of Building Green Software. Together, they dive into the complexities of sustainable data in relation to AI and cloud computing. They explore the environmental impact of managing and storing vast quantities of data, an…