COP27 Rishi Sunak's Paris Agreement & UN 2030 Agenda commitment at COP26 and his attendance at COP27

Rishi Sunak the UK prime minister has U-turned and will attend COP27. Based on his COP26 speech it is difficult to identify what the UK prime minister can further achieve at COP27. There are certainly pressing issues in the UK that need his full attention and guidance. The question that must be asked is "Who put the pressure on the PM to make him do a U-turn on his intention not to attend? The UN? The WEF?"
Details of his COP26 commitments are provided.