The Sustainable Fairs and Gardens Project was implemented by the city of São Paulo in partnership with the Municipal Urban Cleaning Authority (Amlurb), the Lapa Regional Government and Inova. The development began in 2015 with a pilot project in the Lapa neighborhood. The objective was the implementation of composting yards in the municipality, in the vicinity of the generating nuclei, as a way of demonstrating the feasibility of carrying out decentralized treatment of organic waste. The waste comes from tree pruning and flea markets. They are treated and returned in the form of quality compost to the municipality, which contributes to the reduction of waste disposed of in landfills. The method used is known as Static Windrows with Passive Ventilation, created by the Federal University of Santa Catarina (UFSC) and Cepagro (Center for the Promotion and Study of Agriculture).