Gold is one of the world’s most valuable metals, used in everything from electronics to dentistry. But do you know where yours comes from? 20% of gold comes from artisanal and small-scale miners, who often work illegally using toxic chemicals such as mercury and cyanide, due in large part to the profound absence of opportunity and support. The Minamata Convention is working to promote mercury-free mining to empower 20 million artisanal gold miners and the planet.