One more reason to flip the off switch: light pollution
(WorldNews France)

For the 11th year running, cities worldwide will turn their lights off Saturday to mark Earth Hour in a global call to action on climate change. But the moment of darkness should also serve as a reminder, activists say, of another problem that gets far less attention: light pollution. More than 80 per cent of humanity lives under skies saturated with artificial light, scientists recently calculated. In the United States and western Europe, that figure goes up to 99 per cent of the population,......