Critical metals are merely lists built based on geopolitics and supply chain, but are nonetheless essential for advanced technology and particularly the 'green' energy transition.

Our interview spans softball critical metal questions to talking about the dredged material containing sulfate-making bacteria that is generating pyrite on the bottom of a canal in the Chesapeake watershed through to more typical acid mine drainage. All the while we retain focus on the recovery of critical metals from unconventional sources to supplement domestic supplies.

For this interview we read:
Critical metal geochemistry in groundwaters influenced by dredged material (Goodman et al., 2023)
Rare earth element recovery in hard-rock acid mine drainage and mine waste: A case study in Idaho Springs, Colorado (Goodman et al., 2023)

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