Illegal mining has muddied tropical rivers worldwide, Science
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Ghana river pollution: Illegal gold mining contaminating drinking
EOS Professor Warns of Global Mining Crisis in Tropical Rivers
File:Illegal Mining, Peru, 2016-01-29 by Planet Labs.jpg - Wikipedia
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Brazil's clearwater Tapajos river polluted by illegal gold mining
In a biodiversity haven, mining drives highest ever recorded
Illegal Mining, 'Worse Than at Any Other Time,' Threatens
Illegal mining has muddied tropical rivers worldwide, Science
EOS Professor Warns of Global Mining Crisis in Tropical Rivers
A global rise in alluvial mining increases sediment load in
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