/sci/ - Science & Math

Our current economic system is based on infinite exponential growth. That requires exponentially growing energy production. If we choose to remain on this planet, and yet maintain the current economic paradigm, eventually we'll have to tap into all the energy sources mentioned in this thread. Even that won't be enough for the energy hungry humanity. Eventually all the fossil fuels, fissionable material and even fusion fuel on this planet will run out. Of course we can harvest the moon for more of the He3 fusion goodness, but that'll renew relatively slowly. There is only so much solar (including algae), wind, tidal, wave and geothermal energy per year to be harvested. The only question is: which energy source first?

Simple truth is simple.