The lights are going down in Toulouse. Tomorrow early-rising residents of the Allée Camille-Soula in the south-western French city will have set out to work with the morning gloom held at bay by radical new technology which turns on streetlights only when pedestrians pass.
Installed on a 500-metre section of pavement last weekend, the lampposts double the strength of the light they cast when they detect human body heat. Ten seconds later they revert to normal.
Cool concept. Light pollution and in general light usage at night is quite fascinating.