The Panta Rhei scientific decade runs from 2013–2022. The name 'Panta Rhei' means "Everything Flows." The Panta Rhei decade focuses on scientific understanding, prediction, and water management in rapidly changing environmental systems, with an explicit focus on the role of humans in the water cycle. The theme and name of the Panta Rhei decade were identified through community discussion, and Panta Rhei was launched in 2013. During the first Panta Rhei biennium, 2013–2015, 31 working groups were formed on diverse topics related to hydrology, society, and change. Panta Rhei shares some common aims with the UNESCO International Hydrological Programme (IHP) Phase VIII on Water Security.
