ITIL 4 Sustainability in Digital and IT
This domain tests whether you can connect sustainability concepts to the ITIL 4 service value system and apply them to digital and IT decisions. Expect definitions (sustainability, triple bottom line, ESG, circular economy), IT's dual role as emitter and enabler, measurement (GHG Protocol scopes, SCI, PUE), and the practices that support sustainability objectives.
Core rules and concepts
- Sustainability meets present needs without compromising future generations; in ITIL 4 it is a strategic objective flowing through the whole value chain, not a one-off project.
- The triple bottom line adds people and planet to profit. ESG is a narrower investor and reporting lens - not a synonym.
- GHG Protocol scopes: 1 direct fuel and refrigerants; 2 purchased energy (location- and market-based); 3 value chain, usually the largest for IT and most often forgotten.
- IT is both problem and enabler: roughly 2–4% of global emissions, while digital solutions can enable larger reductions elsewhere. The exam expects both sides.
- ITIL 4 fit: four dimensions, guiding principles (especially think and work holistically), value chain activities, and continual improvement all apply; trade-offs must be balanced.
- Circular economy: design out waste, keep materials in use, regenerate natural systems - in IT, extended device life, reuse, take-back and responsible e-waste.
Worked example
An IT team moves on-premises workloads to a hyperscaler and calls it 'green by default.' Correct reasoning: baseline scope 1 (generators), scope 2 (electricity, both methods) and scope 3 (hardware, cloud, e-waste); measure per-service intensity with SCI, not total emissions alone; verify the provider's renewable procurement and reporting; check for rebound effects from newly cheap capacity; then set a science-based target and report progress annually.
Traps
Assuming cloud is always greener; using offsets instead of reduction; quoting totals when a rate is needed; ignoring scope 3; equating an ESG score with sustainability performance; treating sustainability as a one-time certification rather than continual improvement.