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flag Tonga completes national LiDAR mapping in 2026 to fight sea-level rise with climate-resilient planning.

flag In 2026, Tonga will complete full national LiDAR coverage of its low-lying islands through the Tonga Coastal Resilience Project, funded by the Green Climate Fund and led by UNDP with support from the Pacific Community and Tonga’s government. flag The project, using advanced aerial surveys by Fugro, will create a unified, high-accuracy 3D elevation baseline by integrating data from previous surveys, enhancing the nation’s ability to model sea-level rise, assess flood risks, and guide climate-resilient infrastructure planning. flag Capacity-building efforts will strengthen local expertise in geospatial data use, supporting long-term, evidence-based adaptation strategies.

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