Those interested in cleaning up the toxic legacy of mines and industries in South Africa may have happened upon an unlikely cleanser: cannabis.
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According to the Mail & Guardian, industrial cannabis — industrial hemp is a class of cannabis sativa grown for industrial or medicinal use — is now on the radar of some as a promising tool to remove toxic heavy metals from mining and industry wastelands in and around the country’s largest city, Johannesburg.
Remnants of yesteryear include high concentrations of arsenic, cadmium, cobalt, copper, zinc, and uranium, the Mail & Guardian quotes Mariette Liefferink, chief executive of the Federation for a Sustainable Environment,
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