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Environment
Jun 17, 2026
Analyzed by Llama- 4 Scout 17B 16E Instruct

The Hidden Cost of AI: Data Centres' Environmental Impact

AI Summary
A growing body of evidence suggests that AI hyperscalers are warming the ground around them, with land surface temperatures around AI data centres rising by an average of 2 degrees Celsius. The 'data heat island effect' is a phenomenon where concentrated AI data centres cause localised warming, affecting millions of people worldwide.

The Lead

Tech giants are racing to build the infrastructure that powers artificial intelligence, but a growing body of evidence suggests that AI hyperscalers are warming the ground around them as well.

The Data Heat Island Effect

A study by Cambridge-led researchers found that land surface temperatures around AI data centres rise by an average of 2 degrees Celsius (3.6 degrees Fahrenheit), with some areas recording increases as high as 9C (16.2F). This phenomenon is known as the 'data heat island effect'.

Energy Consumption of AI Data Centres

AI data centres use powerful chips that perform thousands of calculations in parallel, making them much more energy-hungry than typical servers used to browse the web. According to the International Energy Agency (IEA), data centres consumed about 415 terawatt hours (TWh) of electricity in 2024, about 1.5 percent of global supply, growing at about 15 percent a year over the last five years.

The Impact Analysis

The study found that more than 340 million people living within 10km (6 miles) of a data centre could be affected by the temperature increases – an impact researchers described as having a 'remarkable influence on communities and regional welfare' and one that should be part of the global conversation about environmentally sustainable AI.

The Prediction

Global investment bank Goldman Sachs expects a combined $5.3 trillion of capital expenditure between 2025 to 2030 for the four largest hyperscalers: Microsoft, Amazon, Alphabet and Meta. Major upcoming projects include Meta's $27bn Hyperion campus in Louisiana, Microsoft's multiphase $20bn data centre campus expansion in Wisconsin, and Amazon's $25bn investment in data centre infrastructure in Mississippi.