Cooling and Facility Design Under AI Load

• Mohammad Qwaider shows a 10 MW facility moving from 1.5 to 1.1 PUE cuts power draw by 4 MW, roughly 35 GWh a year
• Russ Dailey notes new liquid cooled builds land at a 1.05 to 1.15 PUE against an industry average near 1.56
• Rekha Poosala argues PUE is obsolete once GPUs idle on thermal bottlenecks despite a pristine facility score
• Adenilson Belizario finds Brazilian colocation providers ranging from zero WUE to a WUE of 0.03 liters per kilowatt hour
• Onkar Bhadra and Carolyn Pistone both point to seawater cooled floating data centres, from Samsung to Norway's wave powered platform near Bergen
• Dietmar Baro ties World Ozone Day to Danfoss's push toward low GWP refrigerants and direct to chip cooling
• Karl Rabe raises engineered timber as a structural alternative to concrete and steel data centre builds
• Mervin Fu's Circular Compute Passport would track embodied carbon and repair history alongside Singapore's new Digital Infrastructure Bill
• Jerome Tourdiat cites Goldman Sachs projecting a 165 percent rise in global data centre power consumption by 2030
• Brett Ridley warns completed compliance training rarely means operators can actually start a diesel generator under pressure

‍

The Power Economics of the AI Buildout

• Obinna Isiadinso reads Microsoft's 20 year, 835 MW nuclear power purchase agreement at Three Mile Island as project finance, not procurement
• Alexander J. Wurzer flags Google, MN8 Energy and Eos combining solar, batteries and storage at a former West Virginia coal mine
• Didier Rebischung cites IEA projections of nearly 1,000 TWh a year in data centre demand by 2030, more than twice France's consumption
• Steve Solanki points to AEMO forecasting Australian data centre demand rising from 5 TWh to 34 TWh by 2035 to 2036
• Patrick Elftmann highlights PwC's $31.6 trillion global data centre capex estimate through 2050
• Boris Gamazaychikov cites a Bloomberg estimate that AI driven gas plant development could raise US power emissions by 20 percent
• Vrushali Gaud lists five Google initiatives in India including 150 MW of solar in Rajasthan

‍

Tools for Measuring and Routing Around AI's Footprint

• Lilibeth Bustos Linares built SOMA AI after finding region alone can swing AI emissions estimates more than twelvefold
• Sven Bange and Anita Schüttler released neuland's TokenDashboard, open sourcing token, cost and carbon tracking across coding tools
• Nathan Bailey's Carbon Tracking MCP estimates a coding session's CO2 footprint from local logs with no outbound network calls
• Ben Hillier's Tret routes tasks to the most carbon efficient model, since frontier models can use 10 to 100 times more energy
• Aydin Mir Mohammadi's Ponytail, now past 130,000 GitHub stars, trims over engineered AI agent code before it burns tokens
• Niladri Choudhuri's Kompact AI ran a CPU based task at 0.019 Wh against 2.11 Wh for the same job on a cloud GPU
• Robert Keus's GreenPT added DeepSeek V4.1 Flash, returning energy and carbon estimates with every request
• Chinmay Anand cites IEA data showing data centre electricity use rose 17 percent in 2025 alone

‍

Carbon Accounting, ESG Data and Disclosure Standards

• Mark Butcher shows spend based reporting turning a flat product carbon footprint into a false 407 percent emissions increase
• Miguel Fernandez argues financed emissions accounting is limited by activity data quality, not by AI analysis
• Emmanuelle Olivié-Paul's AdVaes partnered with EU-Score.tech to publish environmental scores across more than 2,000 IT providers
• Christophe Clouzeau cites the ITU and World Benchmarking Alliance report finding emissions still rising despite stronger digital climate commitments
• Daniel Jeffrey Koch summarizes UNDP research warning developing countries could capture under 10 percent of AI's $15.7 trillion economic upside by 2030
• Cal Innes's Jisc roundup notes Meta's exit from RE100 as it expands gas investment for AI data centres
• Katia Chaban reports NTT DATA's Carbon Literacy Project has now trained roughly 300 employees globally

‍

Policy and Regulation

• Cora Braga details Brazil's REDATA law tying tax incentives to 100 percent renewable power and a WUE cap of 0.05
• Mike Coe's modelling finds Spain's draft 1.15 PUE grid rule achievable for optimized AI facilities but not conventional ones
• Kari Hayden Pendoley frames a wave of AI governance moves, from the EU AI Act to Singapore's agentic AI framework, as regulation reaching enforcement
• Angel Melguizo frames Brazil's fiscal push as industrial policy tying data centre growth to skills training and transparency

‍

Funding, Talent and Community Momentum

• Chris Wedding finds AI power needs, national security and resource scarcity now fund climate tech more than climate alone
• Jeremy Leung reports MassMutual launching a second $150 million Climate Technology Fund
• Karen van der Zanden has joined TNO to lead Data and AI ecosystem partnerships after building the case for Green IT
• Nolwenn Godard joins a Climate Week NYC panel on data centre energy and water strain in California
• David Edwards highlights Horizon's backing of the Green Compute at the Edge Innovation Challenge in Western Australia
• Dave Masselink and Joanna Masraff point to Green Software Foundation events in early October on AI procurement and model choice
• Kevin Leslie previews Green IO London, where Greenpixie will demo the live cost of a Claude prompt
• Ada Coundoul reports a national Green Coding workshop in Senegal aimed at cutting software's energy footprint

‍

Thanks to Mohammad Qwaider, Russ Dailey, Rekha Poosala, Adenilson Belizario, Onkar Bhadra, Carolyn Pistone, Dietmar Baro, Karl Rabe, Mervin Fu, Jerome Tourdiat, Brett Ridley, Obinna Isiadinso, Alexander J. Wurzer, Didier Rebischung, Steve Solanki, Patrick Elftmann, Boris Gamazaychikov, Vrushali Gaud, Lilibeth Bustos Linares, Sven Bange, Anita Schüttler, Wilco Burggraaf, Nathan Bailey, Ben Hillier, Aydin Mir Mohammadi, Niladri Choudhuri, Robert Keus, Chinmay Anand, Mark Butcher, Miguel Fernandez, Emmanuelle Olivié-Paul, Christophe Clouzeau, Daniel Jeffrey Koch, Cal Innes, Katia Chaban, Cora Braga, Mike Coe, Kari Hayden Pendoley, Angel Melguizo, Chris Wedding, Jeremy Leung, Karen van der Zanden, Nolwenn Godard, David Edwards, Dave Masselink, Joanna Masraff, Kevin Leslie and Ada Coundoul, and everyone else who contributed insights to this edition.

Find the full list of posts and voices on LinkedIn: https://www.linkedin.com/pulse/best-linkedin-cw-36-37-green-ict-sustainable-ai-thomas-allgeyer-hmpre/?trackingId=LCN1aMfRxfcxPO8aVdLb7A%3D%3D