“A chemical reaction you learned about in middle school could help solve the energy crisis.

Running an electrical current through water splits it into oxygen and hydrogen, the latter of which can be used as a reliable, zero-emission fuel source. In the past, the process of purifying water beforehand was too energy intensive for this process to be useful — but now scientists have figured out how to skip the process altogether and convert seawater into usable hydrogen, according to research published in the journal PNAS…”

Source: https://futurism.com/seawater-hydrogen-fuel