Extracting gold from rock can contaminate the environment. Illegal mining activities often use liquid mercury, a toxic chemical that can drip into the soil or be burned off and released as toxic fumes. And the consequences of illicit mining go well beyond those of the extraction process. Miners often chop down thousands of acres of forest with heavy machinery that scars the landscape.
read more... https://www.scientificamerican.com/article/amazon-gold-rush-continues-to-decimate-peru-rsquo-s-rain-forest/
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