Video shows Chinese police smashing down doors and arresting about 80 alleged cyber scammers in the Pacific nation.
"This is maybe the most exciting thing I'll ever do in my life."
Water levels around Pacific Islands are rising about 4 millimetres per year in some areas, slightly above the global average.
Swells of up to 4.5 metres high have been inundating coastal areas.
The first flight left on Tuesday morning.
"We would be concerned by any actions that destabilise the security of our region."
The only desalination plant on the island of Banaba broke down in November - and there's been no rain in more than a year,.
Six crew members abandoned the boat on Monday.
Micronesian leaders have received an apology from their colleagues in the Pacific Islands Forum.