Hopes for a global climate change deal have taken a big hit, with leaders at the APEC summit failing to agree on targets for reducing emissions.
World leaders, including New Zealand's John Key, are supporting a plan to delay a legally binding climate change pact until at least 2010 under a compromise deal for next month's Copenhagen summit.
US President Barack Obama has conceded there will not be a global deal on cutting greenhouse gas emissions at next month's climate change summit in Copenhagen.
Obama is now backing a proposal for a two-stage plan which would seek general consensus in Copenhagen and delay the signing of a legal agreement until next year at the earliest.
Danish Prime Minister Lars Lokke Rasmussen has presented the alternative plan to the leaders at the Asia Pacific summit in Singapore.
A US negotiator says there was an assessment by leaders at the APEC summit that it was unrealistic to expect a full, internationally legally binding agreement to be negotiated by next month.
3 News/RadioLIVE