In April, the Big Four tech firms – Alphabet, Amazon, Meta and Microsoft – pledged to invest a combined $725 billion in AI infrastructure over the next year. The rosy global future these companies envision is fuelled by a never-ending expansion of data centres. These are massive banks of microchips which require vast energy sources to power them, and large reservoirs of water to cool them.
Big Tech’s big data-centre problem
Without abundant energy, the technologies of the future will hit hard limits.
