A satellite image revealed a city’s “islands of darkness,” leading to its ultimate transformation

Medellín's slums are revitalized by repurposing water tanks into public parks.While working on a master plan to update the streetlights of Medellín, Colombia, public works officials found something strange in a satellite image of their city: 144 “islands of darkness” forming a ring around the middle of the city. To their surprise, according to an Read More…