Among permaculture projects in Haiti, I worked on renewable energy within two communities for whom the cost of cooking fuel was either too expensive or unavailable for many leaving these communities the only option they had traditionally used: charcoal.  The problems with charcoal use are multiple:  the fact that Haiti is now deforested to over 98%, pollution, land erosion which takes away valuable land for agriculture, and the brutal reality that the forests are almost gone in Haiti.  Soon there will be no charcoal of any form with which to cook.