(CNN) If necessity is the mother of invention, no one knows it better than the estimated 200,000 to 300,000 Syrians living under siege in eastern Aleppo. An aid convoy was struck by a missle on its way to eastern Aleppo on September 20, 2016. The residents of eastern Aleppo have endured daily firefights, missile strikes, barrel bombs and even allegations of chemical attacks . Once cooled, the steam turns back into a liquid fuel that can be used for a range of daily needs. With the government blocking food from entering the city , Syrians have been forced to start growing their own crops, which they eat and trade for goods.

Source: CNN November 14, 2016 05:09 UTC