The article discusses the aftermath of a catastrophic environmental disaster in Brazil, where the collapse of dams at an iron ore mine operated by Samarco, a joint venture between Vale and BHP Billiton, released a massive mud wave. This disaster resulted in at least 17 deaths, homelessness for hundreds of families, extensive wildlife loss, and severe environmental damage, making it Brazil's worst environmental disaster. The Brazilian government is seeking $5 billion from the companies for recovery, and they are also facing accusations of environmental crimes. The article includes observations from Marcio Pimenta, a documentary and travel photographer, who documented the destruction along the more than 300-mile path of the mud wave, from its source to where it reached the Atlantic Ocean.

The article discusses the influx of Senegalese migrants to Brazil, highlighting their preference for this destination over the more treacherous routes to Europe. Since 2013, a significant number of Senegalese have chosen Brazil, influenced by smugglers who falsely promise easy border crossings and comfortable accommodations. The article notes that from January to June of the current year, approximately 900 Senegalese migrants have arrived in Rio Branco. The migrants' presence is symbolized by a picture of Cheikh Ahmadou Bamba, the founder of the Mouride brotherhood, which reflects their cultural and religious background.