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Nature-based infrastructure’s role in mining closure plans
The report evaluates three closure pathways for artisanal gold mines in Marmato, Colombia, finding that progressive closure using nature-based infrastructure (NBI) provides a return of USD 1.44 for every USD 1 invested. The primary economic driver is the reduction of mortality risks from landslides, rockfalls, and tunnel collapses. NBI interventions, including reforestation and hydrological restoration, are shown to be more cost-effective when implemented during operations rather than at the end of mine life.
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Document type: Report
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