Water has long been ignored by international climate conferences. However, COP21 (Paris, 2015) and COP22 (Marrakech, 2016) saw the organization of official high-level events on water and climate and the launch of a Global Climate Action Agenda (GCAA) dedicated to water, with four Alliances created to implement it: the Global Alliances for Water and Climate (GAWC), gathering the Basin Alliance ( Paris Pact ), the Business Alliance, the Alliance of Megacities and the Desalination Alliance. The International Network of Basin Organizations (INBO) is in charge of the Secretariat of the GAWC.