The third largest city in Brazil, Belo Horizonte (BH), is no different than any other city or town in the world in that it produces tons of trash each day. Unlike other places, BH boasts thousands of “catadores,” who remove the garbage, usually at night when there is less traffic, cart it to a central collection facility that is crawling with rats (but there are enough dogs to chase them away), and separate by gloveless hand their massive load into reusable recyclable materials – paper....