Opening-pit mining is when a massive crater is dug in to the ground,
stripping the natural land above and uses a mining technique where huge
piles of crushed with cyanide solution to extract gold
(Earthjustice.org, 2014) It is detrimental particularly in mountainous
tropical regions as they are prone to landslides and torrential
rainfall, polluting surrounding soil and water, and endangering local
species.
http://glassfuller.com/2014/03/30/costa-rica-the-green-country/
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