A Green Peace volunteer dressed in polar bear costumes is seen on an iceberg model on the square in front of the Tianjin Meijiang Convention and Exhibition Center, the venue of the UN Climate Change conference in north China's Tianjin Municipality, Oct. 7, 2010. By symbolising the last iceberg and the last polar bear on earth, Green Peace called on representatives on Thursday to take real steps fighting against global warming and coping with climate change around the globe. [Xinhua/Yue Yuewei]