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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. -
英語圏の読者にも自然に伝わるよう、直訳ではなく論説記事として整えています。
Construction-generated soil can become a valuable regional resource, yet mismatches in quality, quantity, timing, and distance often prevent its reuse. This article examines the fragmented system behind soil circulation in Japan—and why development must account for the future of the ground it excavates. -
Where Does the Sand Beneath Our Cities Come From? Construction, Coastal Erosion, and the Global Sand Crisis
Cities depend on enormous quantities of sand and gravel for concrete, roads, and infrastructure. This article explores how construction demand is reshaping rivers and seabeds, accelerating coastal erosion, damaging ecosystems, and creating a global need for sustainable sand management.
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