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Is the Gas Beneath Lake Kivu a Resource or a Disaster? A Quiet Risk Beneath the Surface
Beneath Lake Kivu’s calm surface, dissolved methane offers a source of electricity while carbon dioxide poses a potential disaster risk. Managing both depends on careful extraction and long-term monitoring. -
Is Contained Soil Really a Solved Problem? Geogenic Heavy Metals and the Invisible Work of Long-Term Management
Containing excavated soil with geogenic heavy metals does not eliminate the risk. Long-term monitoring, maintenance, funding, and the transfer of land-use information remain essential. -
Whose Pollution Is the Arsenic Underground? Geogenic Heavy Metals Unearthed by Tunnel Construction
Arsenic can exist naturally in geological formations without causing visible harm. But excavation, oxidation, rainwater, and transportation can make it mobile. This article explores how tunnel construction transforms dormant geology into a human responsibility. -
Where Do Cities Send Their Excavated Soil? The “Development Debt” Shifted to Mountains and Valleys
Construction-generated soil disappears from urban construction sites, but it does not disappear from the planet. This article examines how cities transfer excavated soil—and the environmental risks and long-term responsibilities attached to it—to mountains, valleys, and rural communities.
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