Generally encouraged by the level of debate on this thread.
I'm watching Al Gore on Meet the Press right now. One day all our vehicles, public and private, will be green. Right now, I take it most RTA rubber-tire buses are diesel, correct? Well, it's my understanding that any diesel engine can, perhaps with minimal conversion process, run on biodiesel. My understanding is RTA would be willing to switch buses to biodiesel if enough fuel supply were available, but they've had trouble identifying a sufficient supply. Does anyone know anything about this? Surely biodiesel is cheaper that petrodiesel and if a supply were found this would save RTA money right away - as I said conversion of the vehicle to run on bio-d is minimal and inexpensive. Would improve air quality problems that are causing childhood asthma as so on. Perhaps one day the vehicles will all run on fuel cells or whatever, but we need solution for *now*. Anybody have comment?