Bio diesel is a diesel that is made from renewable resources.  Bio diesel can be made from soybeans, vegetable oil or animal fats.  Bio diesel is good for the environment because it helps us keep our air cleaner.  By helping keep the air cleaner will help keep down pollution and will make the air safer to breathe.  By using biodiesel is our boat helps keep our water cleaner which is also good for the animals and plants.  Bio diesel is a fuel that is good for the environment so check it out.