Metal farmingAs demand for green nickel increases, researchers are investigating ways to use plants to mine low-grade deposits

As demand for green nickel increases, researchers are investigating ways to use plants to mine low-grade deposits

By Sarah St-Pierre

December 19, 2024

Odontarrhena chalcidica is a nickel hyperaccumulator native to southeastern Europe. Courtesy of Antony van der Ent, Wageningen University

In New Caledonia and Borneo, some trees bleed sap in hues of blue and green. Not because they are leftovers from science fiction movie sets—but because they draw up nickel from the earth.

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