Limiting global warming to 2°C is not only a question of developing renewable energies, it is also a question of using existing energy sources. Are roads not used most of the time? Put photovoltaic cells on them. Do data centres produce huge amounts of heat? Use it to warm buildings. Technologist takes you on a journey to a city in which smart and efficient energy production is the rule.
Journalists: Julien Calligaro and Robert Gloy
Graphics: Thibaud Tissot and Aleksandar Savić
Sources: IBM, the Uptime Institute, International Energy Agency, Cloud&Heat, Colas, French Environment & Energy Management Agency, BMW, Focus Medialine, International Thermoelectric Society, Transitgas, Tropenhaus Wolhusen.
Related reading: Hot data, Technologist No.6