When you think of the words "hydrogen highway," your mind tends to conjure up images of silent cars whizzing down the road in an environmentally friendly manner.
You don't think about trying to squeeze into a seat between a 300-pound man and a woman with 18 grocery bags. But this scenario might be more realistic.
CalStart, an alternative-transportation advocacy group, has signed five contracts with bus companies to develop and study fuel cells, as well as other components for making hydrogen buses. The $24 million project is partly underwritten by federal grants.