What are the benefits of using biodiesel?

Some highlights include: 78% net CO2 reduction, 70% hydrocarbon emission reduction, 40% less carbon monoxide, and 50% less particulate (black smoke), renewable, cleaner burning, better for the engine due to it's higher lubricity and cetane, lower impact on the environment, better for public health, smells better, and locally produced. And sometimes its even less expensive than diesel.