Medellín's Participatory Budget is a tool through which funds are distributed to development projects proposed by citizens of the municipality. The Participatory Budget program finances urban development, environmental, education, health and social inclusion projects. Each year 5% of the municipality's free investment budget is invested in the program, and is distributed among the 16 sectors into which the municipality is divided. The program has financed projects related to Nature-Based Solutions (NBS), including urban gardens, public parks and environmental education programs.