欧洲和美国计画用，更多从农作物提炼而来的生化燃料，例如玉米、油菜籽、或甘蔗，来代替污染性的汽油，并希望减少昂贵的能源进口开销。

• Europe and the United States are planning to use more transport fuel made from crops, such as corn, rapeseed or sugar cane, to replace polluting oil, aiming also to cut down on expensive energy imports.