Hydrogen is something that is present in great amounts over the entire earth. It is found in many locations such as in water and plant matter, compost materials and even in algae. Because it is present in such large amounts, hydrogen is being considered as an option to replace fossil fuels. Pure hydrogen gas fuel is created by splitting hydrogen from the other elements that join it to form substances like water. Breaking the bond requires some form of chemical processing or heating. After blending hydrogen gas fuel with oxygen, only heat and water are produced when ignited, making it about as eco-friendly as you could hope for!