unintended consequences

i suppose like most people you have seen previews of the coming technology in hydrogen cars. I am all for it, i think it will be great to get rid of all that carbon monoxide and other nasty stuff. All the programs on PBS gleefully say that all that comes out of the exhaust will be fresh clean water.

Well hmmm . . . wait a minute. For any of you who live north of the Mason Dixon Line, I would like you to consider for a moment what your commute to work will be like on some 20 degree morning in january when every car on the road is collectively creating freezing rain on the road surface. With millions of hydrogen cars on the road, there will be no such thing as "dry pavement" on a major road any more, even in warm weather. considering how people drive even in mild drizzles, this is going to be a major pain.

I suppose this could be easily remedied with fill tanks installed in the cars to take up the "exhaust water." But again, wherever that water has collected, on a cold day or night it has to get drained out before it freezes and bursts whatever is holding it. I do hope the engineers have foreseen this problem.