On this week's On the Rocks podcast, Prospector's founder Emily King sat down with Hugh Brown, a best-selling author and photographer, to discuss artisanal miners in the developing world, and how the future of the mining industry may effect them.

In 2007, Hugh started photographing the work and lives of artisanal miners around the world. This project quickly turned into a passion, and he started beginning to encourage people to think about how process driven large scale mining will effect small scale miners.