Well renewable energy so our energy is more efficient and so ur son provides light we will be able to use the solar enegry too and were they are places that have lots of wind whe can use wind energy too as a matter of fsct twe dont have to be using different types of energy makers o and now that i think about it we can use water energy too u see there a bunch of ways too use energy in thte future so whe dont have to pollute the planet and whe can live a more safer and more healthy planet wiht nobody being sick of burning coal and we can live longer and a more helthier life and tranqulity this is my opinion if the year 2100
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