For centuries, farmers in southern Mexico City have cultivated "chinampas", agricultural islands first developed in pre-Hispanic times and still in use today. But water contamination is an increasing concern for them. In these wetlands, environmental NGO Matter of Trust is testing human hair as a tool to reduce pollution and improve soil health. "Hair has an adhesive quality and the ability to capture certain contaminants," says Mattia Carenini, Global Hubs Director at Matter of Trust.

Tag-uri: Agricultura