The final report of the Water and Global Change programme (WATCH), an extensive analysis of the world’s water resources, is significantly expanding our understanding of climate change and land use impacts on the global hydrological cycle.

WATCH results provide the first assessment of the global hydrological cycle on a daily time-frame at 50km grid scale resolution for the past (20th century) and future (21st century), as well as a new global analysis of water scarcity.

Findings from WATCH, including new data sets, maps, new methods and models, are expected to provide a lasting legacy which will be used to analyse, predict and manage water resources, floods and droughts worldwide.