As you know, not all biofuels are made the same; cutting down the rainforest to grow biofuel crops is a terrible idea. Growing crops locally has been proven thru many studies to create lowered emissions and a net gain of energy over the life cycle of the fuel. Life cycle assessments follow a product from "cradle to grave" and all the inputs in between; for biofuels, this would be taking everything from planting, to fertilizing, harvesting, transport, conversion, distribution and combustion, into consideration.
Soybean-based biodiesel (grown in the
SeQuential has always relied upon government laboratory research; we feel it is the least biased source we can find. If you want to do some further reading, here is a page with a whole bunch of links to documents that support the benefits of biofuels: http://www1.eere.energy.gov/biomass/publications.html.
Most studies are done with