"Last month, the number of wildfires in the Amazon tripled compared with the previous year. Wildfires are still burning in Brazil's Amazon rainforest, which is often referred to as the "green lungs" of the planet. The fires have prompted a warning from some scientists that escalating deforestation could eventually turn the rainforest into a dry savanna. Despite a ban on fires for land-clearing, the Amazon is burning at a rate not seen in almost a decade. Al Jazeera's Lucia Newman reports from Chapada dos Guimaraes in the state of Mato Grosso..."