Recycling is an important part of any city's efforts to become more sustainable. But getting people to participate is often a challenge. 

​CGTN’s Paulo Cabral is looking at the southern Brazilian city of Curitiba - ​seen as a model for urban sustainability.

In the second part of the series, Cabral breaks down the city's 'Green Exchange' program.

For more, check out our exclusive content on CGTN Now and subscribe to our weekly newsletter, The China Report.