Provenance
Handout by Leah Joseph. Adapted from pages 9 and 68 of the United Nations Environment Programme: A Practical Guide: Reducing Mercury Use in Artisanal and Small-Scale Gold Mining (2012) downloaded on 7/9/14. Plots created and adapted based on data and style from this same publication (which references an original data source of UNEP, Summary of Supply, Trade and demand information on mercury)

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