Ce robinet public dessert 1000 familles à El Alto, en Bolivie. (Photo par Stephan Bachenheimer / Banque mondiale) Les villes secondaires ou petites villes* ne sont généralement pas desservies par…

Fadel Ndaw |

When the water is poor, people get sick: they have diarrhea; their growth is stunted; they die. When the air is poor, people get sick: they cough; they cannot leave their beds; they die. However,…

Ernesto Sanchez-Triana |