one creative solution is the method of garbage collection-cambio verde, or Green Exchange. This does far more than clean
the streets of trash. In neighborhoods that garbage trucks can't reach, poor people bring bags of trash to special centers.
At these centers, they exchange the trash for fresh produce such as potatoes and oranges. They receive one kilo of produce for every four kilos of trash that they bring in. At a recycling plant, workers separate glass bottles, plastic, and cans from other trash. two-thirds of Curitiba's garbage is recycled, which is good for the environment. And the plant gives jobs to the poorest people, which improves their lives.