Chinese officials and researchers said yesterday they were "deeply disappointed" by the lower-than-expected greenhouse emission cuts the industrialized countries have pledged at the on-going Bonn talks.

They said the proposal by the rich nations forebodes a "gloomy future" for a new climate change deal scheduled to be reached in December in Copenhagen.

The industrialized countries proposed to cut greenhouse gas emissions by between 15 and 21 percent below 1990 levels by 2020 under a new UN climate pact.