As Brazil’s Far Right Leader Threatens the Amazon, One Tribe Pushes Back

But then the bouts of diarrhea among children began. Erosion from the mines turned the river a sandy brown. Fish that had long been a staple of the community’s diet now had high levels of mercury, which is used to extract gold.

“Before, we had a lot of food here, but since the water became dirty, the fish vanished,” he said. “We became concerned about the future of our children.”

read more... https://www.nytimes.com/2018/11/10/world/americas/brazil-indigenous-mining-bolsonaro.html