It's quite fascinating (and even disheartening to a certain extent) that the automotive and aeronautical industries have gotten the hint and begun testing prototypes using alternative fuel sources, leaving architecture and related disciplines in the dark. Why is there such a lag in our embracing of hydrogen, wind, and sun? Sure, there are few projects out there that seem progressive, but we must understand that considering the building industry uses almost 30% of the world's available resources, those using sustainable strategies or "LEED" are almost minuscule in scale. We do not see the country's largest home builder, TOLL BROTHERS, doing anything about anything pertaining to the environment, or its gigantic ecological footprint. Again, quite disheartening.
But if we turn back to cars and planes, we see that Boeing has released images of a FUEL CELL POWERED MANNED AIRPLANE (!) that they will begin testing soon. All things considered, airplanes use quite a lot of gasoline, and it is refreshing to see the largest airplane manufacturer doing something about their reliance on fossil fuels. Same for BMW, which has gotten in on the hydrogen act as well.