Home-made biofuels
We do not believe that largescale production of fuel from food crops or from most tropical oil crops is a sustainable practice: indeed, by contributing to the rise in world food prices it is also a contributor to famine in some countries.
However, some biofuels do not impact in this way. There are some biofuel options on which the picture is unclear at present; we will revise our criteria in response to global developments. At present we would in principle list producers of any of the following:
- bioethanol from cellulose, produced from wood and/or crop stems only
- methane of suitable purity for burning in internal combustion engines, from anaerobic digestion only
- biodiesel primarily produced from waste vegetable oil.