A giant bug for the hydrogen economy?

I used to believe absolutely in the hydrogen economy. I wanted it to happen as fast as possible. As a result I've read a lot regarding fuel cells, hydrogen storage, etc. Suddenly, I began to realize that the hydrogen economy probably wasn't going to come as quickly as I'd hoped.

More distressing, I read statements by some scientists whom claimed that the vapor exhaust from billions of fuel cell vehicles might have unintended, negative consequences. Not long ago, for example, CO2 emissions were deemed just as harmless.

Still, it seems hard to believe that H20 vapor emitted from fuel cell vehicles could cause any problems, right?

Well, according to a new study, if the percentage of oxygen in our atmosphere increased, so to might the size of many bugs, such as hawk-sized dragon-flies. What if this also means hawk-sized locusts, or parrot-sized mosquitoes? How would that affect crops and disease?

Perhaps there are many other downsides to increasing hydrogen and oxygen emissions into our atmosphere.

Maybe this time around we shouldn't allow huge corporations and their cronies in Washington to bet the farm on hydrogen as they once bet the farm on petroleum. The welfare of the people, not just corporate profit, has to be a major consideration.

Maybe a solar hybrid fuel cell vehicle is a better goal than a hydrogen powered fuel cell vehicle.