illegal gold mining

Brazil is using forensic science to tackle illegal gold mining in the Amazon. The mining is a top threat to the rainforest and Indigenous and other local communities as it has accelerated deforestation and driven mercury contamination to dangerous levels. Federal police in Brasilia, the country's capital, are using "gold fingerprinting" — a highly specialized method that can precisely trace the origin of gold in samples.

Today on Sundial: Salvadorans were the most recent refugee group to lose Temporary Protected Status (TPS). It's now likely that Hondurans will also lose…