In the Arctic, the Norwegian city of Longyearbyen, extracts coal for one hundred years as an energic and economic source, which stirs many environmental paradoxes. In 2015, the mayor election year, the coal prices fall and the issue of sustainable development starts to emerge in the minds. According to some scientists, politicians and city locals, Longyearbyen is now facing a race against the clock.

Also available in French: Longyearbyen, ville bipolaire