Can Gold Mining Be More Sustainable? - Yale University
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In a review paper recently published in the journal Land Degradation and Development, Timsina and Hardy focused on the effects of surface gold mining in tropical regions, a growing environmental concern in recent years.
According to a 2012 study, mining accounts for 7% of deforestation in developing nations and large-scale and artisanal, small-scale gold mining techniques such as open-pit mining and dredging are becoming more prevalent in the Amazon and West Africa.
The authors, who include Ashton and YSE doctoral student David Woodbury, focused particularly on gold mining — a topic “relevant for this particular moment,” says Timsina.
Gold mining is becoming more prevalent, he explains, both because it is important for manufacturing electronics and alternative energy production, and persistently rising gold costs make previously unfeasible mining projects more lucrative.
It was this course that inspired Shrabya Timsina ’20 MF and Nora Hardy ’22 MESc to investigate one of the most severe forms of environmental degradation in the tropics —surface mining — to understand the ways in which surface mining affects ecosystems and potential strategies for restoring mining sites.
“You can imagine what surface mining can do to surrounding areas,” says Hardy.
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Surface mining can also impact local hydrology.
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Yale University
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