A cow sifts through human garbage on the banks of the river Selbe, Ulaanbaatar, Mongolia. With an upsurge in urban migration, the problem of waste disposal in the capital is becoming a pressing issue, as proper facilities for refuse disposal and collection are poorly supplied and subsidized by the state. The situation is exacerbated by lack of public awareness and concern for the environment. © 2006 Carl Whetham, Courtesy of Photoshare