A Kremlin aide described on Friday the ongoing UN climate change Copenhagen conference as unsuccessful, but said there was still a chance a declaration could be adopted.

Delegations from 193 countries have been negotiating at the UN Climate Change Conference since December 7, but observers say the countries have made little progress in reaching any meaningful deal to curb greenhouse gas emissions.

"Unfortunately, the summit was arranged so that no agreement can be reached," Arkady Dvorkovich said.

However, he added that intense talks were underway and that "there is still a chance that a political declaration will be adopted."

"All the largest [carbon] emitting nations are seeking a compromise," Dvorkovich said referring to Russia, India, the United States, China and Brazil.

The Kyoto Protocol on cutting carbon emissions expires in 2012. The United States has not ratified the treaty, and although China and India have joined, they are not obliged by the protocol to reduce their emissions.

A source in the Russian delegation said earlier on Friday political agreement at the Copenhagen conference might not be ready by the end of the forum. He added that the heads of state and government had urged their aides to finalize a political document as time was running out.

COPENHAGEN, December 18 (RIA Novosti)