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Data centres are now a power, mining and finance story as much as a tech one. See which industries supply them, which depend on them, why China already runs one under the sea, why space is still a long shot, and the five questions investors should ask before backing the boom.

Power, Cooling and 3,000 Workers: How a Data Centre Really Gets Built

12.7 billion tonnes of goods cross the oceans a year, yet most people never see the ships. Discover how the tanker and cargo shipping business really works, who owns, builds and crews the fleet, why one strait can shake oil prices, and where the next careers and opportunities are.