France, Nov. 18 -- One of the biggest flashpoints is a new global checklist for adaptation - a set of measures showing whether countries are helping communities cope with climate impacts.

African, Latin American and Arab negotiators are blocking approval of this 100-point checklist unless rich nations commit between $120 billion and $150 billion a year for adaptation by 2030.

The existing $40 billion pledge ends this year, and wealthy states are delivering only $25 billion.

Climate Action Network (CAN), a coalition of more than 2,000 organisations, said talks now stand at a crossroads and warned that across all tracks "the implementation gap is a finance gap, and credibility will not be restored until that gap is addressed".

Brazilian...