Mining is a big reason why Ghana has the world’s fastest-growing rate of deforestation, according to the World Resources Institute, and often leads to the contamination of farmland and water sources with toxic chemicals including mercury and cyanide. So Addo-Okyireh and his colleagues have turned to NASA for help.
read more... https://www.bloomberg.com/news/articles/2019-06-17/nasa-and-the-illegal-ghanaian-gold-mines
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