I was just pointing out the reputation that hydrogen has.  I did say it had been overcome.   That takes care of your first two articles.
As far as the third is concerned, we have been hearing garbage like that since at least the 70's and yet we still seem to have oil.   I believe there was a prediction that we would be all out of oil by 2000.   
As far as California is concerned they have to solve the problems already mentioned plus they have to solve the problem of what to do with existing gas cars, especially for low income people that need them to get to work.    This is in addition to other costs that some want to add to their budget.