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Ouvea is listed as World Heritage by UNESCO and is one of the largest Pacific atolls (54 km long, 132 km²). It has a population of 3,400. The island is particularly vulnerable to climate hazards and global warming: cyclones Cook and Donna in 2017, drought and water shortages, and rising water levels. In 2017, the municipality devoted a portion of its budget to the fight against these occurrences. Shoreline protection operations help limit erosion that threatens homes and roads in Takedji in the south of the island, and in the Saint-Joseph tribal district in the north. This project funding helps residents continue to use the coastal road and remain in their homes (although there is a new trend to settle in areas further from the coastline).


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