I was hoping others would see this obvious answer. Thank you for posting. We know that the renewable biofuels industry, dominated by corn, is actually sucking up more than its fair share of energy from the sun, leaving a deficiency of sun-warming energy for the rest of the planet, as the nasty photosynthetic reaction turns the sun’s energy into the ethanol precursor.
It’s true that the sun is not a renewable energy source and it will eventually burn out. What we need to do is use an alternative biofuel that does not use up the suns energy, mushrooms come to mind.