Why China is weighing into the debate on how to respond to shrinking coastlines

For low-lying Pacific island states such as Tuvalu and Kiribati, rising sea levels are not just an existential crisis but also one that calls into question the very foundations of statehood.At the heart of this lies a contentious question: should maritime boundaries shift with changing coastlines, or should they be frozen in place?The answer carries profound implications not only for the survival of vulnerable islands but also for the rest of the world.Some analysts have argued that China should position itself as both a legal advocate and technical partner for Pacific nations to offer tangible support – such as surveying expertise, coastal protection technology and advocacy for fixed maritime boundaries.