Nearly 200 countries are attending the Paris climate summit and nearly every one has something at stake. Yet it's hard to find anyone with more on the line than Tony de Brum, the foreign minister for the Marshall Islands.
"The Marshall Islands covers an area of approximately a million square miles of ocean. Many people call us a small island state. I prefer to be called a large ocean state," de Brum says.
The islands sit in the Pacific, far west of Hawaii, with a population of more than 70,000 spread over 29 atolls.