Case Study: Problems facing megacities - Mexico City

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  • Problems facing megacities - Mexico City
    • Background information
      • Mexico's population annually increases by 1.1%
      • They cannot afford development projects
      • Mexico City contains the world's second largest slum
    • The water problem
      • 40% of Mexico City's water is lost to pipe leaks
      • Many walk long distances to get water from municipal taps
      • Under 10% of the Metro areas sewage is treated
    • The problem of subsidence (the gradual sinking of land)
      • Taking water from beneath Mexico City is causing it to sink
        • This has damaged infrastructure e.g. wells, the sewer system
      • Mexico City now lies 6 feet below lake Texcoco
        • This makes flooding a problem


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