Best of LinkedIn: Sustainability & Green ICT CW 48/ 49

Sustainability in ICT advanced on multiple fronts, from energy-aware cloud operations to data center heat reuse and credible green software standards. The period also highlighted emerging AI energy metrics and pragmatic reporting practices that can be implemented now.

Date

December 12, 2025

Sustainability & Green ICT

Thomas Allgeyer

Methodology: Every two weeks we collect most relevant posts on LinkedIn for selected topics and create an overall summary only based on these posts. If you´re interested in the single posts behind, you can find them here: https://linktr.ee/thomasallgeyer. Have a great read!

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If you prefer listening, check out our podcast summarizing the most relevant insights from Sustainability & Green ICT CW 48/ 49:

GreenOps, FinOps and Cloud efficiency

GreenOps and FinOps emerged as twin levers to optimize cloud workloads for both cost and carbon
Visibility into AI deployment impacts was emphasized to balance cloud spend with engineering imperatives and sustainability by design
Conscious and sustainable AI usage was framed as an operating principle to reduce environmental footprint
Optimizing cloud cost structures aligned with tangible environmental benefits when linked to workload placement and architecture choices

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Data Centers and Energy Transition

Operators positioned sustainability as competitive advantage through technology choices and operational excellence
Compass Datacenters’ long-range planning and community orientation illustrated credible delivery models
AI-driven demand pressure underscored the need for grid modernization, efficiency investments, and supportive policy
Hydrogen fuel cells were highlighted as an alternative power path where grid constraints bite
Australian market takeaways pointed to green data centers targeting innovation pathways through 2030

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AI for Sustainability Impact

Enterprise AI adoption reframed risk, cost, and sustainability, requiring deeper observability across models and infrastructure
Misstated AI energy costs reinforced the need for transparent measurement and verifiable disclosures
Energy consumption of AI was flagged as materially higher than assumed, creating an efficiency improvement runway
Integrating AI emissions into standard metrics offered a path to compare models and guide procurement

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Digital Infrastructure

Digital and green transitions moved from potential to realization with telemetry and model-driven optimization
Future-proof IT systems were tied to modular architecture, disciplined technology selection, and explicit sustainability criteria

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Regulation Reporting Assurance

Practical reporting approaches stressed process efficiency and decision usefulness alongside compliance objectives
CSRD-aligned thinking surfaced implicitly through emphasis on auditable data flows and outcome-oriented disclosures

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Circularity Reuse E-waste

Standardized quality ratings for refurbished devices were positioned as a prerequisite for enterprise-grade circular procurement
Community initiatives promoted concrete steps in education and adoption to reduce ICT footprints

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Sustainable Software Engineering

Green software engineering practices gained traction with credible certification signals and developer-centric guidance
Community efforts in Germany reinforced patterns to reduce environmental impact through better code and tooling

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Regional and Ecosystem Signals

Vienna spotlighted local pioneers driving digital sustainability as a civic and entrepreneurial agenda
MENA climate innovation was described as capable of producing a green unicorn, given talent, capital, and urgency
Germany’s greentech sector momentum reflected broader global shifts toward scalable clean technology markets

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Green IO

Message centered on individual responsibility in tech to act on climate, emphasizing practical steps taken consistently
Encouraged progress at an achievable pace, reinforcing momentum over perfection to drive sector impact
Framed sustainability as daily behavior and decision quality, not only as organizational targets

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