Brazil incorporates Indigenous controlled burning practices into wildfire prevention policy in the Cerrado savanna

Fire began crackling like approaching rain on a recent morning in the Xerente Indigenous Territory in Tocantins in northern Brazil.

The flames were intentional as part of a wildfire prevention effort planned by the Xerente in coordination with environmental officials before the peak dry months of August and September.

There had been decades of prejudice against Indigenous practices. But their expertise is being incorporated into Brazil's public policy as authorities combine scientific research with traditional knowledge.

The approach has proved useful in slowing wildfires. The blazes have become more frequent during prolonged droughts and rising temperatures linked to global warming.