Enele Sopoaga made the comment at the United Nations Economic and Social Commission for Asia and the Pacific office in Suva.
Tuvalu's low-lying atolls are considered among the countries most at risk from inundation by sea-level rise.
Mr Sopoaga stressed the need for Pacific Island nations to take a regional approach to addressing the threat of climate change.
The Fiji Times reports him saying Tuvalu is trying its best to protect its people so that they don't have to move or be forced to leave their islands.
