Hydrogen vehicles will help reduce emissions and fight global warming as they will provide a mode of transportation which will provide an alternative to gas and electric vehicles and cause further innovation in these and other forms or transportation. Eventually hydrogen vehicles will inspire other innovative ideas and these also will help reduce emissions and possibly fight global warming.
Hydrogen vehicles will reduce emissions in most cases, which will in turn possibly fight global warming. But more importantly it will get better gas mileage saving us money in the long run. With lower emissions, it certainly will not harm or hurt the global warming cause at all. Overall I believe that it will help.