Thank you, I also agree with a lot of what you mentioned. When you first brought up ethanol for fuel, the first thing to come to my mind were huge canola fields... grown with fossil fuels, obviously. That one I don't even consider a solution, but an exacerbation of the problem. However, grass clippings, or even better natural wetlands are a whole different story. I can stand behind those. Unfortunately, cars as we know them today have many other poisonous ingredients, such as oil, radiator fluid, not to mention rubber-dust from the tires, etc. which may not be the best for the wetland ecosystem. However, I don't want to exclude anything. A little tweaking to the system can resolve huge issues.