Drought has greatly affected Mexico for a long time, but the level of drought reaching its most populous city (and one of the world’s most populous cities), Mexico City, raises significant concern. Utilizing the 17 cubic metres of rainwater that go down the drain every second in Mexico City’s region is a new goal, and it’s being met through the use of geomembranes for rainwater collection at a purification plant. Read more about this fascinating turn in Mexico’s infrastructure.