Delegates to the United Nations climate change conference are waiting outside the convention center in Copenhagen, December 14, 2009. [chinadaily.com.cn]

Accredited journalists and representatives wait outside the venue of the climate summit in Copenhagen, capital of Denmark, December 14, 2009. Thousands of accredited people were rejected to enter the venue on Monday due to computer system failure. [Xinhua]

A failed security system caused a huge backlog for delegates returning from a one-day break to start the second week of the United Nations climate change conference in Copenhagen.

More than 10,000 people were waiting to enter the convention center in two lines stretching about one kilometer long since the early hours on Monday morning.

Chen Ying, deputy director of the Sustainable Development Research Center under the Chinese Academy of Social Sciences, said she and her colleagues had still failed to enter the conference by 9:00 AM local time despite waiting since 7:00 AM with their day starting two hours before that.

One queue was lined with delegates, media groups and NGOs who had already registered. Another line, stretching much further, consisted of those who just arrived in Copenhagen for the conference. A special passage had been set up for UN staff as well as media members. The entrance choke came after the security screen system broke down and only got worse as participants started to arrive.

Police officers responsible for maintaining order said the conference hall could only accommodate about 15,000 people, compared to the larger number of 50,000 participants invited.

The officers urged people waiting to be patient via loudspeakers. "Take it easy," they said.

By the press time, the lines were still moving forward slowly.

(China Daily December 15, 2009)