In fact, this natural scale enables a cross-sectoral approach, considering water as a central element of energy, agriculture, finance, industry, tourism, the environment and fisheries.

Successful implementation requires cooperation between all sectors and levels of governance, both within national basins and across borders in the case of shared basins and transboundary rivers.

IWRM at basin level must include adaptation to climate change, preservation of biodiversity and transboundary cooperation, in order to accelerate the achievement of the Sustainable Development Goals (SDGs) adopted by the United Nations in 2015, “a global call to action to eradicate poverty, protect the planet and ensure that all people live in peace and prosperity by 2030“.

Integrated water management is therefore seen in relation to economic efficiency, environmental protection, sustainability, the specific needs of each country in terms of economic and social development, and decision-making that must be guided by the needs of all stakeholders and users of water resources.

Public and private investment in the water sector must be economically efficient, socially acceptable and financially sustainable.