Fire is used extensively in the Amazon to clear land, create soil, and unfortunately to burn trash. Smoldering logs or bonfires are a common site. And burning plastic creates new chemicals which have unknown health effects. Recently om a trail in the Colombian Pacific, I left my water bottle near a pile of branches near a clearing, and when I returned some villagers had set the branches afire, as well as my water. Then, less than a year later, I left a bag with water at the entrance of the forest, and returned to find the entire savanna on fire, and the indigenous community frantically trying to put out the fire. This was during the 2016 'El Nino' drought in north Colombia, when it didn't rain in many places for months. The villagers blamed someone from the city, but the fire could have started naturally.