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This is Scientific American 60-Second Earth. I'm Cynthia Graber.Got a minute?

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There's a gold rush going on and it's affecting tropical ecosystems.

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The rush is due in part to an increase in wealth in developing countries and their subsequent acquisition of gold.

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Another factor is the loss of faith in financial markets since the financial crash, which prompts investors to put money into gold.

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The desire for gold made its price soar from $250 dollars per ounce in 2000 to $1,300 per ounce in 2013.

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To determine the impact of increased gold mining prompted by the value jump, researchers evaluated about 1,600 gold-mining sites in forested areas and tracked the changes in forest cover between 2001 and 2013.

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They found an increase in deforestation of about 1,600 square kilometers.

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Deforestation picked up between 2007 to 2013 that parallels the financial crisis and the rise in the price of gold.

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In some areas, deforestation occurred four times as much in those latter six years as in the first six.

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The study was published in the journal Environmental Research Letters.

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In addition to the destruction of the forest itself, mining causes additional problems, such as air, soil and water pollution from arsenic, cyanide and mercury.

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It also takes longer for forests to recover from mining than from other uses, such as agriculture.

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Another casualty of the global financial crisis.

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Thanks for the minute, for Scientific American 60-Second Earth. I'm Cynthia Graber.

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