Bangkok, March 26 -- A Thai environmental expert has warned that the country's coastline faces a risk of disappearance within 25 years as the world's largest iceberg, A23a, melts rapidly due to rising global temperatures, contributing to rising sea levels.

Sonthi Kotchawat, an esteemed oracle of environmental and health sciences, revealed that the iceberg A23a, spanning approximately 3,500 square kilometres with an average thickness of 280 metres, has been grounded off South Georgia Island near Antarctica since breaking away in 1986, local media reported.

As global temperatures continue to exceed the 1.5 degrees Celsius threshold set by the Paris Agreement, A23a is at risk of breaking into smaller icebergs, which can disrupt key shippin...