Las diez ciudades más limpias del planeta
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La reconocida consultora internacional Mercer elaboró un ránking de las metrópolis con mayor cuidado de la higiene pública. Este se realizó en función a la calidad del aire y agua potable, reciclaje y tratamiento de residuos, recojo de basura y fluidez en el tránsito. 1. Calgary, Canadá: 1.1 millones de habitantes 2. Adelaida, Australia: 1.2 […]