UNESCO expanded the World Natural Heritage listing for South Korea's mudflats by adding four new tidal flat sites [1].
This expansion increases the global protection of critical coastal ecosystems that support endangered species and serve as essential stop-over points for migratory birds. The decision reinforces the ecological value of the Korean peninsula's coastlines within the international conservation framework.
The decision was announced during the 48th session of the World Heritage Committee held in Busan [2]. Committee members said they confirmed the adoption of the expansion, noting that the sites meet UNESCO natural habitat criterion 10 [3].
Officials said the committee valued the fact that various organisms, including endangered species, inhabit the mudflats and that the areas are critical as intermediate stop-overs for migratory birds [3]. This ecological significance justifies the enlargement of the protected region to ensure the survival of these species.
The listing previously included four sites established in 2021: Seocheon in Chungnam, Gochang in Jeonbuk, Sinan in Gwangju and Jeonnam, and Boseong-Suncheon in Jeonnam [1]. The addition of four more sites further extends the reach of this conservation effort [1].
Beyond biodiversity, these coastal areas provide significant environmental services. Reports indicate the carbon sequestration capacity of Korean mudflats reaches 490,000 tons [4]. This ability to capture carbon highlights the role of tidal flats in mitigating climate change, a factor that complements the biological importance of the sites.
While some reports initially suggested the decision was pending, the World Heritage Committee said it officially declared the adoption of the decision during the Busan session [3].
“UNESCO expanded the World Natural Heritage listing for South Korea's mudflats by adding four new tidal flat sites.”
The expansion of the World Natural Heritage listing signals a shift toward recognizing the 'blue carbon' potential of coastal ecosystems. By protecting a larger area of tidal flats, South Korea not only preserves critical avian migration routes but also secures a natural infrastructure capable of significant carbon sequestration, aligning local environmental management with global climate goals.
