Two villagers collect coals at a coal yard in Xinmin Township of Jingyuan County, northwest China's Ningxia Hui Autonomous Region, on Oct. 31, 2012. As temperatures drop drastically in Ningxia, residents in its rural areas begin storing coals for heating in winter. Burning coals in winter is the most common way to keep out the cold in north China's rural areas lack of heating systems. (Xinhua/Peng Zhaozhi)