The third round of UN negotiations on an agreement to reduce greenhouse gases made some progress in Bonn, Germany, but there's still a lot to be done at meetings in China and Mexico later this year.

After week-long talks, the climate text under discussion has increased to 34 pages from 17, as new proposals were added or old ones reinserted.

The blueprint contains a set of draft decisions for final UN talks in Cancun, Mexico, in November.

They include the impact of agriculture on emissions, carbon market mechanisms and the mechanics and impact of moving to a low-emissions future.

UN climate chief Christiana Figueres says progress has been made on determining the shape of a future deal. The next round of negotiations will take place in Tianjin, China between October 4th and 9th.