A small but lively group of demonstrators set themselves up outside the Los Angeles Auto Show, giving a green wash job to a white Hummer H2. The only problem was that they had the most polluting car in the immediate vicinity. The cars lined up at the curb, and sponsored by the Green Car Journal, were all zero-emission and hybrid vehicles. While the demonstrators were suggesting that the car companies weren't serious about making environmentally friendly vehicles, I was looking at Ford's fuel-cell Explorer, an SUV that runs on hydrogen and has water vapor as its only emission. Likewise with the Chevrolet Equinox fuel-cell vehicle sitting right next to it. While I appreciate the environmentalist ethic of the demonstrators, they do the cause little good when a couple of 4,000 pound facts contrary to their argument are sitting right at the curb.