Understanding the state and value of the world’s wetlands The Global Wetland Outlook 2025 presents a synthesis of scientific information on the value of the world’s wetlands, the costs to society due to wetland loss and degradation and the scale of investment needed to restore wetlands. It is based on the latest publications and data on the extent of inland, coastal and marine wetlands and global databases on the benefits that wetlands provide. Wetlands are vital to water and food security, and human well-being, so recognising the links between global biodiversity, climate, and water targets and wetland conservation and restoration is critical. This report recognizes the barriers to achieving this and describes four pathways to support nature-positive investment in wetland conservation and wise use.
