Tropical birds show signs of mercury contamination, due to artisanal gold mining operations: Study
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Gold mining spreads mercury to tropical birds, study says
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Health: Gold mining spreads mercury to tropical birds, study says
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Colombia, officially Republic of Colombia, Spanish República de Colombia, country of northwestern South America. Its 1,000 miles (1,600 km) of coast to the north are bathed by the waters of the Caribbean Sea, and its 800 miles (1,300 km) of coast to the west are washed by the Pacific Ocean. The country is bordered by Panama, which divides the two bodies of water, on the northwest, by Venezuela and Brazil on the east, and by Peru and Ecuador on the south. It is more than twice the size of France and includes the San Andrés y Providencia archipelago, located off