A Possible Solve to Climate Change

The law of Chemical Reaction, is that no new atom is lost, nor gained. If we, hypothetically, can find chemical reactions which break down into new parts, and the new chemicals react with those of the other chemical reactions, we can harvest the energy emitted from these reactions indefinitely, It's not perpetual motion. Simply using a multiplicity of fuels, and reusing them, and the energy created by the chemical reactions. We might even be able to harvest all of the chemicals from the ocean. 

I think Jules Verne had this idea, but people don't understand it.