Fresh water resources and supplying enough water for the world's growing population are increasingly important issues. Today, water in rivers, lakes and wetlands only represents 0.3% of the world's freshwater. The loss of freshwater resources has a direct impact on food availability, water quality, public health, climate, and can lead to environmental disasters. Major international constant monitoring programs are already underway, using Argos to relay key data, for example, water level of a river, snow cover, status of installed equipment or dams. These information networks will increasingly help the global community manage existing water resources and implement better, more efficient and useful distribution of available water.