Fiji, Oct. 22 -- Coastal flood damage across Asia and the Pacific could rise to between US$172 billion and US$199 billion annually by 2050 without stronger adaptation measures, threatening millions of people, livelihoods and critical infrastructure, the Asian Development Bank (ADB) warns.

The ADB's Asia-Pacific Climate Report 2026 says annual coastal flood damage, estimated at about US$27 billion today, could increase to between US$519 billion and US$739 billion by 2100 if countries fail to invest in resilience.

More than 400 million people across ADB developing member countries with coastlines live within 10 kilometres of the sea, while coastal areas generate about US$7 trillion in economic activity annually.

The report says rising sea ...