Environment Variables

In this episode, host Chris Adams is joined by Wilco Burggraaf and Robert Keus of GreenPT to unpack what greener prompting and transparent AI actually look like in practice. They discuss why most AI services hide their environmental impact, how GreenPT exposes real energy and carbon data to users, and why user behavior plays a major role in AI’s footprint. The conversation explores prompt length, session design, model efficiency, and the limits of chat-based AI, making a strong case for transparency, better defaults, and more purposeful use of AI if it’s going to scale responsibly.Learn more about our people:Chris Adams: LinkedIn | GitHub | WebsiteRobert Keus: LinkedIn | WebsiteWilco Burggraaf: LinkedIn | Medium | WebsiteFind out more about the GSF:The Green Software Foundation Website Sign up to the Green Software Foundation NewsletterResources:GreenPT [01:14] Green Software - The Netherlands | Meetup [02:34]Scaleway [22:40]Neuralwatt [29:23]If you enjoyed this episode then please either:Follow, rate, and review on Apple PodcastsFollow and rate on SpotifyWatch our videos on The Green Software Foundation YouTube Channel!Connect with us on Twitter, Github and LinkedIn! Hosted on Acast. See acast.com/privacy for more information.

Chris Adams speaks with Tom Kerkhove of the Microsoft Azure API Management team about how thoughtful API design can reduce energy use and improve system efficiency. They discuss how API gateways, caching, throttling, and observability can cut unnecessary compute and data transfer, while also improving reliability and developer experience. The conversation shows how small architectural decisions at the API layer can have an outsized impact on cost, performance, and sustainability at scale.Learn more about our people:Chris Adams: LinkedIn | GitHub | WebsiteTom Kerkhove: LinkedIn | WebsiteFind out more about the GSF:The Green Software Foundation Website Sign up to the Green Software Foundation NewsletterResources:Solar Protocol [02:33]KEDA [04:37] Azure API Management [10:01]Grid-aware websites - Green Web Foundation [20:37]Electricity Maps [23:25]Real Time Energy and Carbon Standard for Cloud Providers [26:17]Azure API Management | Microsoft Azure Blog [30:01]If you enjoyed this episode then please either:Follow, rate, and review on Apple PodcastsFollow and rate on SpotifyWatch our videos on The Green Software Foundation YouTube Channel!Connect with us on Twitter, Github and LinkedIn! Hosted on Acast. See acast.com/privacy for more information.

Sara Bergman, a software engineer at Microsoft and co-author of Building Green Software, dives into greener computing through the lens of .NET and CPU efficiency. She explains the benefits of transitioning from x64 to ARM-based platforms, highlighting cost and carbon savings. The discussion touches on the importance of modern runtime environments for ease of architectural shifts. They explore how DevOps practices can facilitate these changes and advocate for gradual migrations to optimize performance, security, and sustainability while leveraging AI for smoother upgrades.

This Week in Green Software, Chris Adams and Asim Hussain round up the latest stories shaping sustainable tech. From new research on AI and energy use to policy shifts, tooling updates, and signals from the wider climate and software communities, the discussion connects the dots on what matters right now and why. It’s a fast-moving snapshot of the trends, tensions, and progress driving green software forward.Learn more about our people:Chris Adams: LinkedIn | GitHub | WebsiteAsim Hussain: LinkedInFind out more about the GSF:The Green Software Foundation Website Sign up to the Green Software Foundation NewsletterNews:AI Energy Score v2: Refreshed Leaderboard, now with Reasoning | Hugging Face [05:57]Digital Transformation, IT Cost Optimization & Sustainable IT Solutions | Antarctica [15:43]Scott’s Chamberlin of NeuralWatt’s survey link on charging for AI inference by the KWh, instead of by the token, to align incentives [29:16]Simplified European Sustainability Reporting Standards | ESG [31:10]Climate rift opens between Amazon and rivals in row over data centre power | Financial Times [40:46]Resources:SCI for AI spec referencing token use | GSF [14:35]Are these all the tokens we should be counting? Ismael Velasco’s talk at Green IO [25:57]GitHub: System Prompts for Grok chat assistant [28:36]Elon Musk's AI chatbot, Grok, started calling itself 'MechaHitler' | NPR [28:53]Wow tech firms STILL need to report their revenue from the oil and gas sector, even after reporting standards have been ‘simplified’? | Chris Adams [31:19]An E.E.D. update: Who is disclosing and who isn't ? - Green Web Foundation  [34:43]The secretive cabal of US polluters that is rewriting the EU’s human rights and climate law - SOMO [37:27][Draft] ESRS E1 - Climate Change If you enjoyed this episode then please either:Follow, rate, and review on Apple PodcastsFollow and rate on SpotifyWatch our videos on The Green Software Foundation YouTube Channel!Connect with us on Twitter, Github and LinkedIn! Hosted on Acast. See acast.com/privacy for more information.

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 can lead to smarter, lower-carbon choices for teams. It’s a candid look at what it really takes to make the web greener, and the tools that can help developers get there.Learn more about our people:Chris Adams: LinkedIn | GitHub | WebsiteAdam Newman: LinkedIn | GitHub | WebsiteOliver Winks: LinkedIn | GitHub | WebsiteFind out more about the GSF:The Green Software Foundation Website Sign up to the Green Software Foundation NewsletterNews:Software Carbon Intensity (SCI) Specification | GSF [00:48]Software Carbon Intensity (SCI) For Web: Measuring energy and emissions of web applications [02:03]Kitemill [09:32]Cardamon | Root & Branch [12:56]GitHub - Root-Branch/cardamon-web-model [32:09]Green Metrics Tool | green-coding.io [43:18]Green Software Brighton | Meetup [58:09]If you enjoyed this episode then please either:Follow, rate, and review on Apple PodcastsFollow and rate on SpotifyWatch our videos on The Green Software Foundation YouTube Channel!Connect with us on Twitter, Github and LinkedIn! Hosted on Acast. See acast.com/privacy for more information.

Valeria Salis, a software engineer and sustainability consultant, co-founded Green Software Italia to promote responsible tech and community climate action. She discusses the surprising water demands of AI and how data centers can impact local resources. Valeria shares insights on innovative solutions like underwater data centers and the importance of transparency in water use. Emphasizing the need for inclusivity in sustainability, she encourages wider engagement in greener technology practices to address the environmental challenges posed by the tech industry.

Karthik Vaidhyanathan, an Assistant Professor at IIIT Hyderabad, shares his expertise on making AI development more sustainable. He discusses how AI's growth can conflict with energy goals and stresses the need for energy-efficient design. Karthik explores dynamic model selection and the importance of adapting AI systems to cleaner energy sources. He emphasizes a collaborative approach across academia and industry to integrate sustainability into software engineering, highlighting that making green software a priority can lead to cost savings and a positive environmental impact.

Julian Gommlich, a software architect and sustainability advocate, joins host Anne Currie for an insightful discussion on embedding green practices in the DevOps lifecycle. They explore how continuous delivery and agile methods align with sustainability goals. Julian shares his journey into green software and emphasizes the importance of real-time data for carbon awareness in data centers. They also advocate for rapid prototyping and customer engagement to enhance energy efficiency, while discussing the trade-offs between availability and environmental impact.

Didi Hoffmann, CTO and co-founder of Green Coding Solutions, dives deep into the intersection of software and sustainability. He shares his journey from Linux kernel development to advocating for measurable software energy usage. Didi explains the creation of PowerLetrics, an open-source tool for tracking process-level energy consumption, and the importance of integrating energy metrics into operating systems. They also discuss the Blue Angel certification and the need for continuous sustainability checks in software development.

Boris Gamazaychikov, Head of AI Sustainability at Salesforce, discusses the critical intersection of artificial intelligence and environmental responsibility. He highlights the varying energy impacts of AI models and the launch of the groundbreaking AI Energy Score for benchmarking. Boris explains how specific models can lead to massive efficiency gains, the necessity of aligning AI workloads with renewable energy, and the importance of transparency in AI development. He encourages embracing AI while advocating for smarter, sustainable strategies in the tech landscape.