All of the energy ever created on earth came from the sun, or the solar system in general.
Solar energy, combined with biology has generated, over thousands of millions of years: trees on land, plankton in seas which have not only created organic fuels but also carbonic rocks (e.g. limestone). And there is a lot of it; each lump, grain and drop, was generated by the sun. Over 1000s of millions of years. All that energy has been trapped in mineral form. Like a battery.
What happens, do you think, when that energy (carbon) is released within a few hundred years as mankind elects to burn coal, oil and make cement from limestone?
Solar energy, combined with biology has generated, over thousands of millions of years: trees on land, plankton in seas which have not only created organic fuels but also carbonic rocks (e.g. limestone). And there is a lot of it; each lump, grain and drop, was generated by the sun. Over 1000s of millions of years. All that energy has been trapped in mineral form. Like a battery.
What happens, do you think, when that energy (carbon) is released within a few hundred years as mankind elects to burn coal, oil and make cement from limestone?