Everyone is intent on going green. In recent years, hydrogen fuel has become synonymous with renewable energy. But did you know that hydrogen is the most abundant element on earth?In tandem with its abundance, it is only natural for scientists to try and make the most of an inexhaustible alternative to fossil fuels. Unlike fossil fuels and other forms of natural gas, hydrogen fuel cell technology produces water as the only waste product. However, like with everything else, there is more than meets the eye.