State of Global Water Resources 2021

This first WMO annual State of Global Water Resources report has been launched in response to calls made, for example during COP 27 in Egypt, for accurate water data and information to guide discussions. It is also an important milestone along the road to the United Nations 2023 Water Conference. This WMO flagship report gives a concise presentation of the status of water resources in each basin in comparison to the 30-year hydrological average of that basin.