Interesting story out of Darfur where wood cooking stoves are making a big impact on cooking costs - families were spending half of their income on firewood.
http://www.popularmechanics.com/tec...lives-in-sudans-darfur-region?click=pm_latest
http://www.popularmechanics.com/tec...lives-in-sudans-darfur-region?click=pm_latest