Model for megacities? Mexico City cleans up its air. – Christian Science Monitor
Christian Science MonitorModel for megacities? Mexico City cleans up its air. Christian Science MonitorMexico City was once known for its smoggy landscape with industrial eyesores such as the 18 de Marzo Refinery spewing ozone-forming emissions such as sulfur dioxide. The cloud of contaminants hanging over the capital played into an apocalyptic . . . and more »
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