Green Software Foundation — Building a Sustainable Digital Future Sustainable technology, from silicon to screen Software, and the hardware it runs on, designed, built, and operated to minimize its carbon emissions, energy consumption, water usage, and waste across every layer of the technology stack, from silicon to screen Making that real takes four things Standards Policy Education Community Challenge IT and infrastructure represent a growing portion of energy footprints. Engineering teams lack the specialized training to build in the efficiencies leadership requires. Without a common framework, teams make inconsistent decisions, unable to distinguish genuine emissions reduction from well-intentioned guesswork Solution The Green Software Practitioner Course, equipping engineering teams to turn board-level strategy into technical reality. Developed with Microsoft, Accenture, Thoughtworks, and GitHub Impact Completed by over 130,000 developers globally Explore the Practitioner course → Members who Contributed MEASUREMENT & TARGETS“We reported emissions annually, but it didn’t help set engineering targets” Challenge GHG reporting gives compliance but not insight. An annual total doesn't translate into actionable targets for engineering teams. Cloud migrations, architectural changes, infrastructure investments, they all blur into one number Solution The Software Carbon Intensity standard (SCI), an ISO-certified metric that lets teams set targets engineers can actually act on. Not an aggregate total. A rate teams can own and reduce Impact Became ISO 21031:2024 in under three years. Seven independent implementations published across banking, consulting, and infrastructure Discover the SCI standard → Members who Contributed PILOTS TO IMPLEMENTATION“Our pilots were working, but we found it hard to scale” Challenge Sustainability pilots launched. Emissions measured. But initiatives stay trapped in IT, never scaling across procurement, operations, and business units. Boards expect transformation; teams are delivering point solutions Solution The SOFT framework, co-chaired by HSBC and Microsoft, built with Avanade, BCG X, Cisco, NTT DATA, Siemens, and UBS. Not another measurement tool. The comprehensive framework for embedding software practices systematically across every function Impact Ratified November 2025. Four global organizations already implementing the framework across Strategy, Implementation, Operational, and Compliance Learn about the SOFT framework → Members who Contributed SCI FOR AI“AI is the fastest-growing carbon cost and organizations can’t measure it” Challenge Organizations are deploying AI at scale. When stakeholders ask about the carbon footprint, there is no standardized answer. Multi-million dollar infrastructure decisions are being made without understanding their relative carbon efficiency Solution SCI for AI, extending the proven SCI methodology specifically for artificial intelligence systems. Standardized measurement across training and inference, applicable from LLMs to computer vision. Developed by members including Microsoft, UBS, Google, and Accenture Impact Ratified December 2025, the first consensus-based AI carbon standard. Over 20 organizations participated in the workshops. Covers six AI lifecycle stages from data preparation to end-of-life Explore SCI for AI → Members who Contributed CONSENSUS AT SPEED“Getting consensus across time zones, languages, and competing priorities” Challenge Traditional standards development takes years. By the time specifications reach certification, regulations have evolved and technology has shifted. The bottleneck isn't technical complexity, it's coordination across dozens of stakeholders with competing priorities Solution AI-accelerated consensus. GSF achieved ISO certification for SCI in under 3 years, unprecedented. Now applying AI to synthesize perspectives from hundreds of participants in days, not months Impact From blank page to consensus design document in ten weeks. Fourteen experts from 15 organizations. The process is now proven and replicable across all new GSF specifications Discover consensus at speed → Members who Contributed Discuss your challenges with us Every member's journey starts with a conversation about what you're trying to solve Request a discussion Our Reach A global community of practitioners, leaders, and organizations driving sustainable software forward 130,000+ Green Software Practitioner course completions Take the course → 12,000 LinkedIn followers Follow us → 12,000 Global meetup community members Find a meetup → 450,000 Podcast downloads Listen now → 7,800+ Newsletter subscribers Subscribe → Learn more about our community What we do Four functions. Each one driven by member needs. Each one producing results the industry adopts Standards Our members develop vendor-neutral specifications, from SCI to SOFT, through an AI-facilitated consensus process that's achieved ISO certification in record time Explore our standards → Policy & Research Translating technical reality into regulatory language. Position papers, the State of Green Software report, and a policy radar tracking emerging legislation, giving members the evidence and the voice See our policy work → Education Building capability at every level. From the free Green Software Practitioner course (130,000+ completions) to advanced certification and cohort programs, turning commitments into competence Start learning → Community Champions, meetups, podcasts, and events, a global network of practitioners driving sustainable software forward. The movement that turns individual effort into industry change Join the community → Where to go next Leading sustainability strategy? See our impact, explore membership, governance & leadership Explore membership Implementing in your engineering team? Education journey, standards & tools, Green Software Patterns Start the journey Want to contribute? Member playbook, working groups, community Get involved Featured Content Stories, research, and insights from our members and community The SCI Standard: Providing the Software Emissions Data CSRD Needs A new white paper from GSF's Software Standards Working Group maps the SCI standard to CSRD's reporting requirements. Learn how to go from software energy data to a CSRD-compliant disclosure, and how SCI complements GHG accounting by adding the granularity needed to measure software impacts. Read the story → Designing SCI for Web: What We Agreed and What Comes Next In autumn 2025, a group of GSF members reached consensus on the design foundation for SCI for Web. Here is what they agreed on, how the AI-assisted process worked, and what's next. Read the story → SCI for AI Specification Ratified: Standard for Measuring AI Emissions Across the Lifecycle We're excited to announce the ratification of the SCI for AI specification, marking a major step in making the carbon footprint of AI systems transparent, comparable, and actionable. Read the story → Building Green Software through Standards and Collaboration CAST, NTT DATA, and UBS share how they are reducing their software emissions and laying a solid foundation for a greener digital future. Read the story → Baselining Software Carbon Emissions - A Use Case by UBS Using the SCI specification, UBS compares two banking applications with regard to their carbon emissions. Read the story → How Accenture Implemented the SCI Specification Score to Track Software Emissions An in depth look at how Accenture implemented the SCI Specification Score to track software emissions. Read the story → Carbon-Aware Computing Whitepaper - How UBS succeeded in measuring and reducing carbon emissions of their core risk platform The first enterprise-scale implementation of carbon-aware computing using the software carbon intensity (SCI) specification and carbon-aware-sdk is capable of avoiding multiple metric tons of CO2eq from entering the atmosphere -- every year. Read the story → View all articles → Discuss your challenges with us Request a discussion