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Photo: Pacific Islands Forum Secretariat
The decision was taken during Friday's virtual leaders' summit to mark the fifth anniversary of the Paris Agreement.
The leaders have endorsed the development of a 2050 Strategy for the Blue Pacific Continent ahead of next year's COP26 in the UK.
The leaders also renewed their commitment to progress the implementation of the Paris Accord.
The forum acknowledged the need for urgent and immediate actions against the threats and challenges of climate change.
Forum chair and Tuvalu Prime Minister, Kausea Natano, called for 'immediate action and not just discussion of ambition'.
"Five years on, we must now ask ourselves, 'are we making the necessary policy and behavioural change to keep us on the 1.5-degree pathway from the perspective of the Blue Pacific?'