“The shape of the fog hole almost coincides one-to-one with the city boundaries and the size of the city.”
Volcanic ash, often a waste material, could change how we build our cities.
One building already has electricity-generating windows.
The increase surprises researchers, as child marriage had been considered a largely rural phenomenon.
Writing in Newsweek, Anne Hidalgo is convinced cities can provide a fresh momentum to democracy.
A new photographic series showcases global urban trends.
The former New York mayor’s foundation will fund art to bring visitors, engagement, and public-private partnerships to American cities