"The dams are no longer sufficient to hold the water, " he said.

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In a generation or two, the Zulus were farmers and herders no more, no longer proudly self-sufficient, and their families, once the very soul of their tribe, quickly began to crumble.

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It highlights that historical experience will no longer be sufficient to approximate the relationship between the quantities of available water and shifting future demands.

UNESCO: Urbanization, globalisation and climate change are creating new challenges to water management in the region of Latin America and the Caribbean. | United Nations Educational, Scientific and Cultural Organization