According to satellite data from Brazil's National Institute for Space Research, as of August 21, local time, forest fires in the Amazon region had been burning for 16 days, and "lungs of the earth" had been covered with smoke.
The Amazon region on the border between Brazil, Peru and Bolivia is a fire-stricken area, which has destroyed at least 500,000 hectares of forest.
Bolivian authorities warned this week that 70% of the population of Santa Cruz Province is at "extreme risk" of forest fires, accounting for more than a quarter of the country's population.
It is understood that May to October is the dry season in the Amazon rainforest area. The Brazilian National Institute for Space Research says the dry season is one of the causes of fires.
But this year, rainfall in the Amazon region is only slightly below the average, and there is no abnormality, so human activity is the main culprit of frequent fires.。