It is well known that conventional petrol (and diesel) engines can easily be converted to run on hydrogen gas. Although this is not as efficient as fuel cells, it still does not release carbon dioxide. Sure, you can't go 600 miles on a single tank (without a storage tank of several cubic furlongs volume), but most people do travel less than 30 miles a day.
Which is simpler: having to drill down kilometers into the ocean bed to get what dregs of oil remain, or derive your fuel from an offshore windfarm, powering electrolysers, piping clean pure Hydrogen ashore direct to the filling stations, or even having your own turbine/solar array at home? "Oh! You'd need to invest in infrastructure!" I hear you cry...
Grow up and learn that oil and gas will not last forever. Compunding this with the multitudes of environmental data showing our all-conquering human race making a complete mess of the planet, it is fairly obvious we must change, and fast. The sooner we find our alternatives the better. Whining how the development models of new technologies are not as good as incredibly well developed existing technology is not going to help anyone. I applaud Honda for their efforts. Forget your souped up SUVs and 4x4s for 5 seconds please and quit yerr moanin'.