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Sustainability7 min
Green transformation in software: sustainable coding
ICT consumes 1.5-4% of global emissions and 6-12% of electricity. Software decisions are now environmental decisions.
Code quality = lower emissions
Maintenance is 70-80% of TCO. Bad code drives constant refactoring, recompiling and testing — every loop burns datacenter energy.
ISO/IEC 21031: the SCI standard
Software Carbon Intensity measures CO₂ per unit of work. It became an ISO standard in 2024 — the foundation for 'you can't manage what you don't measure'.
Five pillars of carbon-aware design
Measure before optimizing. Design carbon-aware architecture. Reduce unnecessary data. Pick efficient algorithms and languages. Choose green infrastructure providers.
Cost and emissions fall together
Performance optimization already cuts cost. Adding emissions as a KPI yields a double win — same job, fewer resources.