Mexico has a trash-dumping problem. Could this new clean-up project from Monterrey be the fix?

Across Mexico, illegal trash-dumping is a pervasive issue, evident along roadways, vacant lots, and waterways. In Nuevo León, a project spearheaded by Tecnológico de Monterrey seeks to transform one polluted stream into a model for urban restoration. The Arroyo Seco-San Augustín waterway, a 13-kilometer stretch running through Monterrey, has become a dumping ground, with over 70% of its debris consisting of plastics, supplemented by textiles, tires, and construction rubble.

The Arroyo Vivo initiative, launched in late 2022, has already removed 21 tons of waste during 16 cleanup days, employing data analysis and community participation to address the problem. Algorithms will scrutinize street-level images and photographs shared by residents to quantify waste volumes, while plans are in place to establish a biological corridor along the waterway to benefit wildlife and residents.

The restoration could alleviate pollution and mitigate flood risks during heavy rains. Researchers are formulating three-, five-, and 10-year plans, recognizing that complete ecosystem restoration may span decades. Nélida Escobedo, a Tec researcher, emphasizes that this initiative aims to create a replicable model for ecological, social, and urban regeneration in Arroyo Seco, a challenge that extends beyond Monterrey.

Mexico City has identified 889 illegal dumps, with a significant concentration in specific boroughs, and nationwide, 21% of municipal solid waste was improperly disposed of in 2012, according to a 2015 environmental report by Semarnat, Mexico’s Environment Ministry.