I spent last week in the Brazilian Amazon in Porto Velho, Rondonia, on the edge of what is called the arco do incendios. The “arc of fires” is a region stretching along the yet-to-be-paved highways 319 and 230, between the towns of Humaitá and Apui in Southern Amazonas, a state that still had 98% of its virgin rainforest intact as of last year.