State of Global Water Resources 2022

Droughts and extreme rainfall events are taking a heavy toll on lives and economies. Melting snow, ice and glaciers have increased hazards like floods and threaten long-term water security for millions of people.

The report combines input from dozens of experts and complements WMO’s flagship State of the Global Climate Report in order to provide integrated and holistic information for policy makers.

The report calls for improved monitoring, data-sharing, cross-border collaboration and assessments of water resources – and an accompanying increase in investments to facilitate this. This is vital to help society cope with increasing water extremes of too much or too little, it says.

The State of Global Water Resources Report 2022 contains information on important hydrological variables like groundwater, evaporation, streamflow, terrestrial water storage, soil moisture, cryosphere (frozen water), inflows to reservoirs, and hydrological disasters. It integrates field observations, satellite-based remote sensing data and numerical modelling simulations to assess water resources at the global scale.

• Explore the report here.