It can be a tiring and disheartening job for the representatives of small Pacific nations at international climate change talks - up against bigger, better-resourced countries.
The director of Tuvalu's Department of Climate Change and Disaster, Pepetua Latasi, regularly attends negotiations, including recent talks in Bonn where a bloc of countries continued to question a major report from the Intergovernmental Panel on Climate Change on the difference between 1.5 and 2 degrees of warming.
Sally Round asked Ms Latasi about the pressures involved for Tuvalu.