Fiji, Tonga and Tuvalu hold a fascination for travellers who are drawn to their unparalleled beauty. But these island paradises are facing an existential climate threat as sea levels rise. CNA’s Jeremy Koh gets a first-hand account and tells Julie Yoo how locals in Tuvalu are adapting to living on an island that is becoming increasingly uninhabitable.  See omnystudio.com/listener for privacy information.