Việt Nam needs US$20-30 billion investment for universal clean water a… stockbot 0 15 04.16 10:28 https://vietnamnews.vn/society/1653964/viet-nam-needs-us-20-30-billion… + 0 https://vietnamnews.vn/rss/society.rss + 0 Water use in agricultural production, along with thousands of irrigation and hydroelectric dams that ensure water source security pose deterioration and potential safety risks.