WHERE ARE THESE GROUP OF ISLANDS?

Some so low lying that the sea has swallowed them.
Each puff of smoke from a smokestack or automobile tail pipe,
Constitutes an imminent threat to these islands.
Islands rich in culture and history.
Their loss would be a world calamity.

Leaders active in campaigns to limit carbon emissions.
Advocating pollution taxes to build sea walls.
Tsunamis are real.
Lead sponsor of Paris Climate Accord.
Livelihood depends on the seas.

Predatory foreign trawlers decimating fish supply,
As nations have no Navies.
GNP is fish-based augmented by tourism.
Culture is preserved and handed down to generations.
Obesity is a national crisis.

Used to be testing grounds for nuclear bombs,
France and USA are guilty.
Perfunctory or no post-test cleanup done.
Used as staging grounds during World War II.
Residual radiation still poses a problem to inhabitants.

Where are these islands?