Thousands of low-income households are benefiting from a simple system that captures and filters rainfall from the city’s roofs Walking up a steep hill to a small informal settlement of about 45 houses in Cristo Rey, above San Gregorio Atlapulco in Mexico City, Ana Aparicio Bahena arrives at her ...

Source: [Guardian International](https://www.theguardian.com/global-development/2026/jul/20/rainwater-harvesting-mexico-city-transforming-lives)

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