In 1978, Canada began healing Sudbury’s toxic “moonscape” with crushed limestone; by 2015, 9.5 million trees had been planted

Sudbury’s barren landscape transformed by a large-scale regreening program. Crushed limestone neutralized acidic soil and bound toxic metals, enabling plant growth. Millions of trees were planted over decades, funded by governments and companies. First Nations now partner in land reclamation projects, which is a significant development. This effort shows industrial damage need not be permanent, offering a global blueprint.
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