Dozens of young people stood in a line inside the Bella Center, the venue of the on-going United Nations Climate Change Conference, with a strong message that leaders must commit themselves to ensuring a successful outcome.

As the venue will limit the number of NGO representatives into the Bella Center, most of the young people participating the demonstration are scheduled to return to their home countries.

However, they have left the message behind. Time is running short and the nations must take actions to cut emissions, adapt and mitigate the global warming.