Vanuatu, with a population of some 280,000 people spread across roughly 80 islands, is among more than a dozen Pacific island nations facing rising sea levels and more regular storms that can wipe out much of their economies.

“In response to the catastrophic levels of climate change loss and damage faced by this small Pacific nation, Vanuatu recognises that current levels of action and support for vulnerable developing countries within multilateral mechanisms are insufficient,” the government said in a statement on Saturday.