The large number of fires in the Amazon rainforest is causing concern worldwide (Credit INPE/BBC)

It is not uncommon for human-generated blazes — lit to clear the land out for farming or ranching — in the Amazon rainforest to get out of control. However, this year, the number of wildfires has been extraordinarily high. Brazil's National Institute for Space Research (INPE) has recorded over 73,000 fires in the world's largest tropical rainforest between January and August 2019, 2,500 of which are currently active. This is the highest number observed since the agency began keeping records in 2013, and an astounding 80 percent more than during the first eight months of 2018.