As climate change threatens data centers, Amazon, Microsoft, and Google are tinkering with cooling options and building data centers in colder countries
Data centers run our personal and professional lives, so it's crucial that they keep working in a future of climate change.
Context & Ripple Effects
Cooling already consumes close to half of a data center's power, which is why Microsoft and at least a dozen startups have been testing nonconducting liquids to cool servers since 2021. The next step in that arc is geographic: rather than only engineering around heat, Amazon, Microsoft, and Google are also relocating capacity to colder countries where ambient conditions do part of the work.
The move sits alongside two other siting shifts in the coverage — Amazon, Apple, and Microsoft planning to connect data centers to district heating systems in Europe, following Meta's 2020 start in Denmark, and plans to reuse old power stations and industrial sites where land and power are heavily constrained. Climate resilience is becoming a siting criterion on par with power availability.
First-order effects
- Site-selection teams at Amazon, Microsoft, and Google now weigh ambient temperature and climate exposure alongside land and grid access, pushing new capacity toward colder countries.
- Microsoft's liquid-cooling experiments move from efficiency projects toward climate-adaptation infrastructure, since cooling that works in hot or water-stressed regions directly extends where data centers can operate.
Second-order effects
- Colder-country governments and utilities gain bargaining leverage as hosts, mirroring the dynamic behind the European heat-reuse deals where data center waste heat becomes a sellable input to district heating networks.
- Water-stressed markets harden against new builds — the Chilean activist campaigns against Amazon, Google, and Microsoft during a drought expected to last until 2040 show local opposition translating directly into denied or delayed capacity.
Third-order effects
- If the pattern holds, data center geography reorganizes around climate and resource constraints rather than market proximity alone, with cold climates, industrial brownfield sites, and heat-reuse-ready grids forming the preferred footprint.
- Cooling technology becomes a competitive differentiator among hyperscalers: whoever commercializes liquid or low-water cooling first can build where rivals cannot, turning an energy bill line item into a moat.
The trend: Data center siting is shifting from latency-and-market-driven placement toward climate- and resource-constrained planning, with cooling innovation deciding which geographies remain viable.