Global water supplies are sufficient to meet the needs of humanity, but the United Nations says the resource needs to be used wisely.

The warning comes in a brief for policy makers on a water and food secure future released by the UN’s Food and Agriculture Organization (FAO).

Governments and experts from around the world are meeting to discuss this and other issues at the 7th World Water Forum taking place in Daegue, Korea this week.

Olcay Unver is the head of FAO’s delegation at the forum.

Sandra Ferrari began by asking him about the state of the global water supply.

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