MIT chemists Daniel Nocera and Matthew Kanan have discovered a way to to convert sunlight into chemical fuel by using Cobalt to split water into oxygen and hydrogen. According to Dr. Nocera, water combined with light will split the hydrogen and oxygen in a water molecule, then recombining hydrogen and oxygen will produce energy and water. This means those pollution-free fuel cell vehicles already in the market will be able to acquire their fuel using a sustainable energy source instead of energy acquired from fossil fuels.