Palestinian workers extract charcoal from sand at the production facility, east of the Jabaliya refugee camp, northern Gaza City, Gaza Strip March 21, 2014 Tow men work throughout the year, especially during winter and holidays periods when coal is in high demand. While workers cut down various types of trees, firewood is typically used to make charcoal. The citrus tree is very useful and the most expensive handle over available types like some Elkinia or Olive. After harvesting the trees, workers shape the wood into a pyramid which is buried beneath the sand. The pyramid is set on fire, and it burns from the inside for several days. During this period, workers must control the burning by regularly moistening the pyramid with water. When the fire has subsided, the sand is cleared, leaving the burned wood exposed for a 6-day period. The workers are then able to harvest and clean the raw charcoal. Finally, any excess is mechanically ground off. Photo by emad nassar/FLASH90

Palestinian workers extract charcoal from sand at the production facility, east of the Jabaliya refugee camp, northern Gaza City, Gaza Strip March 21, 2014 Tow men work throughout the year, especially during winter and holidays periods when coal is in high demand. While workers cut down various types of trees, firewood is typically used to make charcoal. The citrus tree is very useful and the most expensive handle over available types like some Elkinia or Olive. After harvesting the trees, workers shape the wood into a pyramid which is buried beneath the sand. The pyramid is set on fire, and it burns from the inside for several days. During this period, workers must control the burning by regularly moistening the pyramid with water. When the fire has subsided, the sand is cleared, leaving the burned wood exposed for a 6-day period. The workers are then able to harvest and clean the raw charcoal. Finally, any excess is mechanically ground off. Photo by emad nassar/FLASH90

Palestinian workers extract charcoal from sand at the production facility, east of the Jabaliya refugee camp, northern Gaza City, Gaza Strip March 21, 2014 Tow men work throughout the year, especially during winter and holidays periods when coal is in high demand. While workers cut down various types of trees, firewood is typically used to make charcoal. The citrus tree is very useful and the most expensive handle over available types like some Elkinia or Olive. After harvesting the trees, workers shape the wood into a pyramid which is buried beneath the sand. The pyramid is set on fire, and it burns from the inside for several days. During this period, workers must control the burning by regularly moistening the pyramid with water. When the fire has subsided, the sand is cleared, leaving the burned wood exposed for a 6-day period. The workers are then able to harvest and clean the raw charcoal. Finally, any excess is mechanically ground off. Photo by emad nassar/FLASH90

A Palestinian man uses a slingshot during clashes with Israeli security forces (unseen) in the West Bank village of Silwad, north of Ramallah, on March 21, 2014 following a protest of Palestinians against the expansion of the nearby Israeli settlement of Ofra. photo by Issam Rimawi/FLASH90