BONN, (Reuters) – U.N. climate talks have moved  backward rather than forward toward a hoped-for deal later this  year as nations make slow progress on pledges to cut greenhouse  gas emissions and add more proposals to the working document.

As talks in Bonn on a new climate treaty drew to an end yesterday, there was still a lot of work to be done at remaining  meetings in Tianjin, China and Mexico at the end of the year.

“I came to Bonn hopeful of a deal in Cancun, but at this  point I am very concerned as I have seen some countries walking  back from progress made in Copenhagen,” said Jonathan Pershing,  the U.S. deputy special climate envoy.

A new climate text under discussion has increased to 34  pages from 17 as new proposals are added or old ones reinserted.

The blueprint contains a set of draft decisions for final  U.N. talks in Cancun, Mexico in November, including the impact  of agriculture on emissions, carbon market mechanisms and the  mechanics and impact of moving to a low-emissions future.

The European Union’s co-lead negotiator, Artur  Runge-Metzger, accused some countries of adding text in a “tit  for tat” way and said, “It is important in Tianjin to turn that  spirit around.”

U.N. climate chief Christiana Figueres said the text would  not be allowed to grow further and that some progress had been  made towards deciding on the shape of a future deal.

“If you see the bigger picture, we have progress here in  Bonn. It is hard to cook a meal without a pot, and governments  are much closer to actually making the pot,” she said. But the Climate Action Network, a coalition of about 500  non-profit organisations, said heads of state need to give their  representatives clearer direction to concentrate on areas where  they can find convergence to make real progress in Cancun.

The pace of negotiations has slowed as some countries have  gone back on issues agreed last year in Copenhagen such as  monitoring and measuring greenhouse gas emissions and ways of  cutting emissions from rich nations and developing countries.

“The mitigation discussion even went backwards and became  more polarized,” said Gordon Shepherd at campaign group WWF.

Reducing emissions from deforestation and degradation (REDD)  was also reopened over the definition of what it covered.    The Alliance of Small Island States complained rich nations’  pledges to cut emissions fell short of what was needed.

“We cannot anticipate any major shift from what we had in  Copenhagen, which was a 12 to 18 percent reduction when the IPCC  called for 25 percent. We are far from that in the aggregate  figures,” said the group’s chair, Dessima Williams.

The U.S. said the talks focused too much on putting the onus  only on rich nations to deliver cuts, rather than all countries.

Climate finance is also an area of disagreement. The  Copenhagen Accord last December set a long-term goal of raising  $100 billion a year by 2020 to avert the effects of climate  change and a short-term goal of $10 billion a year by 2012.