BANGKOK, Sept. 3 (Xinhua) -- Against the backdrop of severe and record heatwaves, bushfires, droughts and floods across the world, governments will convene a supplementary meeting in Bangkok from Tuesday to prepare the implementation guidelines of the Paris Climate Change Agreement.

Patricia Espinosa, Executive Secretary of UN Climate Change, made the announcement at a press conference on Monday. She stressed that the guidelines are needed to make the Paris Agreement work fairly and transparently for all.

Following a two-year negotiation process, the implementation guidelines are set to be adopted at the annual climate conference, COP24, to be held in Katowice, Poland in December.

While the talks have made modest progress, the Bangkok meeting is the last opportunity before COP24 to accelerate negotiations.

"Building on progress made, countries now need to take a decisive step forward in preparing the ambitious and balanced outcome that we need in Katowice," Patricia Espinosa said, adding that reaching success at COP24 will be challenging without the preparation of an official negotiating text on the implementation guidelines.

"It will be critical for negotiators in Bangkok to produce solid text-based output that can function as the basis for concluding negotiations in Katowice and be turned into the final implementation guidelines of the Paris Agreement at COP24. The texts capturing progress to date are not yet refined enough for this purpose," she said.

"With only six additional days for negotiations in Bangkok, UN Climate Change is carefully coordinating demands to fully support countries in their important task," she added.