Did you know?

Light pollution is the excessive presence of an artificial light at night. It can have effects on health, disrupting ecosystems and of course waste energy.

Since 2013, France has adopted an illumination ban. Offices, shops and non-residential buildings have to turn off their lights after 1am.

Some iconic buildings are exempt, like the Eiffel Tower and other cultural buildings during celebrations.

The illumination ban is expected to save 200 million euros (more than $260 million) and 250,000 tons of carbon dioxide each year, according to the Ministry of Ecology.

Have you already noticed light pollution in your city? Big offices buildings with lights on 24/7?