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Pacific Island nations will bear the full brunt of climate change in coming decades, after a prediction that temperatures will rise to 1.5 degrees Celsius higher than pre industrial levels as soon as the early 2030s.
Professor Mark Howden, from the Australian National Univesity, is a vice chair of the Intergovernmental Panel on Climate Change, and says governments need to make urgent decisions.
He spoke to reporter Ben Strang about what the Pacific is facing.