Wearing a plastic bag as a hat, a boy collects coal dregs in the rain at a mine in Huaying Mountain, Huaying city, Southwest China's Sichuan province, July 13, 2011. Students from poor families in the area collect the coal dregs, which may be reused, during their summer vacation to sell for money to buy textbooks for next semester as well as to cover parts of their expenses. [Photo/Asianewsphoto]

A boy walks down a mountain of coal dregs carrying a bamboo basket in the rain at Huaying Mountain, in Huaying city, Southwest China's Sichuan province, July 13, 2011. [Photo/Asianewsphoto]