HO CHI MINH CITY -- Vietnam is ratcheting up its scrutiny of mining sand, one of the world's most used resources but whose misuse is linked to erosion, sinking land and the collapse of homes.
Officials look for 'unusual' activity as erosion puts homes at risk
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Excessive sand mining plagues areas like Vietnam's Mekong Delta, where homes have crumbled into the river. (Photo by Linh Pham)
HO CHI MINH CITY -- Vietnam is ratcheting up its scrutiny of mining sand, one of the world's most used resources but whose misuse is linked to erosion, sinking land and the collapse of homes.