Ironically Green

I was reading about the Big Green Bus, a bio-diesel plug for some university, and I was thinking that most "green" folks are creating/using bio-diesel to help save the environment , which is perfectly brilliant; however, the need for fuel is driven by fast food,which pollutes the body. Hmmm - I find it ironic that someone would save the earth at the expense of a life. Maybe we should skip the middle man and use people for car fuel.