Data Centre Debate Intensifies Ahead of US Midterms
US politicians clash with data centre expansion as AI boom accelerates
At a glance
- There are approximately 12,250 data centres worldwide, up from 8,000 in 2021, with the US hosting 4,767 sites.
- The AI boom is driving demand, with projects like Colossus 2 using Nvidia chips and methane turbines to power large-scale AI training.
- Sixteen US states have proposed laws to ban or restrict new data centre developments ahead of the November 3 elections.
The US data centre debate is intensifying ahead of midterm elections on November 3, as political opposition grows against new facilities. These warehouse-like buildings power the AI boom, housing servers for ChatGPT and Claude, and are at the heart of advanced computing. With about 12,250 data centres worldwide—up sharply from 8,000 in 2021—the sector is expanding rapidly. The US alone hosts 4,767 sites, the most dense cluster globally, while China Telecom's largest facility in Hohhot, Inner Mongolia, spans nearly one million square metres.
The push for AI infrastructure is driving massive investment, with the tech industry expected to spend $765bn on AI infrastructure in 2026, topping $1tn next year. Projects like Colossus 2 will house hundreds of thousands of Nvidia chips and train xAI's Grok, using 41 methane gas turbines. Activists warn this could significantly increase local air pollution, though regulators say turbines meet standards. Data centres also consume substantial water for cooling and more electricity than the entire country of France.
In response, sixteen US states have proposed laws to ban or temporarily block new data centre developments, making it a key issue in the November elections. Opposition has also emerged in Mexico, France, Indonesia and the UK. While supporters argue data centres are critical for national security and economic growth—attracting investment and creating jobs—the environmental and local impact concerns are mounting. A Brookings report suggests data centres do create local jobs, though fewer than industry advocates claim.
The type of facility matters: hyperscale sites owned by tech giants like Amazon and Microsoft show greater positive economic impact, while colocation facilities lease space to remote tenants with fewer benefits. As the debate continues, alternatives are being explored, including space-based or lunar data centres and on-device AI processing that could reduce reliance on large facilities.
Source: BBC Technology
Questions and answers
- How many data centres are there worldwide?
- Approximately 12,250 data centres exist globally, up sharply from 8,000 in 2021.
- What is the biggest data centre and what powers it?
- China Telecom's facility in Hohhot, Inner Mongolia, covers about one million square metres and will house Nvidia chips for training xAI's Grok.
