Cameron Donahue Posted about 3 years ago Why we still don't use water to run our engines? We do not expect every country to follow suit in order for US to start making economical decisions. Whether or not a country has a "good water supply": I will presume there are 'people' in the countries you're referring to, and seeing as people NEED water, I'm guessing there is some kind of supply. And, when comparing the availability of water to that of oil in my own geographic region: I know where a river is nearby, but not an oil well... so does this help me determine that I don't have a "good oil supply"? Or can that shit be pumped through veins across the Earth for thousands of miles, just like water?