The Mekong is one of the largest rivers in the world, beginning in China and flowing through Thailand, Vietnam and Cambodia. Nearly 70 million people in Asia are dependent on its waters for fishing or to irrigate their rice fields. But this watery giant is threatened due to the dredging of its sand, which is wreaking havoc on the ecosystem. Our colleagues from France 2 report, with FRANCE 24's Camille Nedelec and James Mulholland.

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