At the 2023 United Nations Climate Change Conference (COP28) she was the chief negotiator for the Alliance of Small Island States.
[1] In 2009 she first became involved in representing her country in climate negotiations and by COP18 in 2012 in Doha, she was co-chairing meetings.
[2] In 2022, at COP27 she was a vice-president organising the election of officers of regional groups for the climate negotiations process.
[2] Samoan minister Toeolesulusulu Cedric Schuster, of the Alliance of Small Island States was arguing for stronger recognition, saying that AOSIS "would not sign their own death certificate".
Tina Stege noted that the agreement represented an improvement but it was insufficient to save her country - the low lying Marshall Islands.