63 the hoped‑for ubiquity of digital technologies crumbles when faced with urban realities and the constraints of the energy transition. Firstly, because digital technologies are themselves energy‑intensive. They are said to consume between 10% and 15% (according to studies) of global electricity production and their carbon footprint is higher than civil aviation, i.e., 4% to 5% (still according to studies) compared with 2% for the air sector. Electronic data processing, when possible, is also energy‑intensive. Then, all computers and equipment In Songdo, a district in the port city of Incheon to the west of Seoul, the ambition is to reach zero CO2 emissions.
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