Illegal mining has muddied tropical rivers worldwide, Science
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Impact of artisanal small-scale (gold and diamond) mining
Western Hemisphere U.S. Geological Survey
Artisanal mining is leaving a trail of devastation - Geographical
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Illegal mining in the 'not comparable to any other period
Brazilian gold rush is poisoning the rivers of Jacareacanga
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Brazil's clearwater Tapajos river polluted by illegal gold mining
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Tropic Trouble: The 21st Century Mining Boom's Watery Wreckage
Illegal gold rush causing 'irreversible damage' to rivers in the
A global rise in alluvial mining increases sediment load in
Colombia's indigenous form 'mini-government' to save
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