As its population changes, so does the faith of a country. In Brazil there has been a surge in Pentecostal Christianity – in 30 years numbers grew from 4m to 25m. Catholicism has reduced. Who are the main players, and how did this change come about? Read this Economist article for more info.
http://thechristiannews.net/2016/01/27/the-explosion-of-pentecostalism-in-brazil/