The Solomon Islands prime minister says he joins his Association of Small Island States colleagues in reiterating that climate change is irreversible and a threat to humanity.
Gordon Darcy Lilo had been speaking at the 67th Session of the General Assembly of the United Nations in New York.
He told the UN in terms of emission levels there is a discrepancy between what is necessary and what has been pledged to stabilise temperature increase.
Mr Lilo says this means climate change mitigation must be addressed at the Doha conference next month, and greenhouse gas emissions levels be reduced.
"We need to have certainty that we are working towards a temperature increase, no more then 1-point-5 degress celsius, in order a 3 to 5 degree celsius wall. These to ensure the survival, viability and sustainable development of small island developing states and least developed countries."
The Solomon Islands prime minister, Gordon Darcy Lilo.