A panda climbs a tree at a zoo in Yantai, East China's Shandong province, Jan 4, 2012. The four-year-old panda came from Wolong Nature Reserve in southwestern Sichuan province. Temperatures in Yantai dropped to minus 7 degree Celsius on Wednesday, the lowest this winter. [Photo/CFP]

A tourist slides down an ice sculpture on the night before the opening ceremony of the 13th Harbin Ice and Snow World in Harbin, Heilongjiang province Jan 4, 2012. The Harbin International Ice and Snow Festival will be officially launched on Jan 5, 2012. Picture taken Jan 4, 2012. [Photo/Agencies]