The government of the Maldives has held a cabinet meeting underwater to highlight the threat of global warming to the low-lying Indian Ocean nation.
President Mohamed Nasheed and his cabinet signed a document calling for global cuts in carbon emissions.
Ministers spent half an hour on the sea bed, communicating with white boards and hand signals.
The president said the UN climate change conference in Copenhagen this December cannot be allowed to fail.
At a later press conference while still in the water, President Nasheed was asked what would happen if the summit fails. "We are going to die," he replied.
If the Maldives cannot be saved today we do not feel that there is much of a chance for the rest of the world
President Mohamed Nasheed
Officials in climate change stunt
The Maldives stand an average of 2.1 metres (7ft) above sea level, and the government says they face being wiped out if oceans rise.
"We're now actually trying to send our message, let the world know what is happening, and what will happen to the Maldives if climate change is not checked," President Nasheed said.
"If the Maldives cannot be saved today we do not feel that there is much of a chance for the rest of the world," he added.