A Pacific climate change specialist says the region's representatives had their goals frustrated at global talks in Germany last week.
A two-week-long UN climate meeting in Bonn concluded on Thursday, with negotiators backing a dramatic climate change report.
The report from October urged countries to limit global warming to 1.5 degrees over the 2 degrees of the earlier Paris Agreement.
But in Bonn, a group of fossil fuel producers blocked some agreement on the text and no emissions targets were set.
Espen Ronneberg from the Secretariat of the Pacific Regional Environment Programme said it was a disappointing outcome for the Pacific.
"It was a very stressful process for the Pacific delegations, they really wanted to have this report, properly, endorsed by the process, so that the relevant decision-making processes such as on climate change financing would take that report into account."