There are significant issues with widespread adoption of bio-fuels from energy crops (i.e. growing wood or oil seed specifically to burn it). See for example the Friends of the Earth campiagn (www.foe.co.uk/campaigns/biodiversity/press_for_change/biofuels/index.html).
However this does not mean that we cannot make better use of waste materials. Effectively we are considering incineration of selected wastes to
