Friends of the Earth Biofuels Database

Here is a neat new resource for getting familiar with the advantages, impacts, and costs of using various biofuel replacements for gasoline or diesel fuels.

Friends of the Earth Biofuels Database

What I find most valuable is that is distinguishes between many different types of biofuels that I only hazily differentiate in my mind. It offers two main categories with many subcategories:

Traditional Ethanol: Barley, cassava, corn, sorghum grain, sugar beets, sugar cane, wheat
Cellulosic Ethanol: Corn stover, manure, miscanthus, rice straw, switchgrass, waste wood, wheat straw, wood, wood (polar tree)

Each can be analyzed and compared along a large number of impacts, such as fuel yield/acre, nitrogen fertilizer input, water use, soil compression, and GHG emissions. Wow! This is a vital resource. It's still a little bit beta-phase, but I hope it will be cleaned up and well maintained.