Climate talks hit wall on developed countries' $100 bn financial pledge

Delegates from 178 nations spent the week narrowing down options for a rule book for the Paris accord

Climate negotiators in Bangkok made progress on several issues to set a framework for implementing the landmark 2015 Paris accord, but hit a stumbling block over details behind a plan for developed countries to spend $100 billion a year to finance projects in the developing world.

The extra round of negotiations in Bangkok from September 4 to September 9 was meant to deliver progress in preparation for a final round of talks in December in Katowice, Poland, said United Nations Climate Change Executive Secretary Patricia Espinosa in a briefing in Bangkok ahead of the meeting's close.

"Only limited progress has