Brazil's Amazon rainforest is in peril. During incumbent president Jair Bolsonaro’s time in office, researchers have seen an increase in deforestation, land invasions and violence against Indigenous peoples in the area. Ahead of the runoff vote in the country’s presidential election, we speak with an Indigenous leader who says his tribe’s very existence is at stake with this election. Guests: André Karipuna, chief of the Karipuna tribe. Claudio Angelo, former climate journalist.