The Pacific's coral reef systems and coastal fisheries are set for extinction if wealthy nations don't drastically and immediately cut greenhouse gas emissions.
An Intergovernmetal Panel on Climate Change report released last night pegs temperatures hitting as much as 3.9 degrees above industrial times, twice the 1.5 degree target.
Anything above 2 degrees is a death-knell in the Pacific.
Dominic Godfrey from RNZ Pacific reports.
