Workers weed near a forest that shields the city of Karamay from the GebiDesertin northwest China's Xinjiang Uygur autonomous region, July 29, 2009. Planting and forestation work began in 2002 in the region and a wall of trees covering 148,000 mu of land (about 100 square kilometers) has been grown around Karamay, a city home to about 350,000 people. [Xinhua]
