Often it takes individuals with vision to lead the process of change. Valente Souza is an Urban planner and committed environmentalist. The government of Mexico City have employed him to find sustainable solutions to their water shortages – he is convinced the local ecosystem holds the answers. The solution is the rain. In Mexico City, people live on top of a mountain, so the water source are not rivers and lakes but on rain. We have to reestablish what we call the hydrological cycle. This cycle rely on ancient forests that used to surround the city. As the city grew, they all disappeared. Souzas mission is to protect the remaining forest. Part of that is to prevent soil erosion. MC is surrounded by rocks with forest on top. It rains, the soil prevents it from running water away fast. When it rains, the soil gets saturated with water. Then the rocks get saturated with water. So, the only way for us to have water in the city is to catch it in the forest. Souza works with the local communities and teaches them to conserve, protect and grow the forest. Instead of farmers cultivating corns, they cultivate trees.
For more & Photo source: http://naturalresources.house.gov/