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Do we need nuclear power for sustainable energy production?
Fuel for nuclear energy will last a very long time.
Nuclear reactors use very little fuel.
Collecting uranium dissolved in seawater and processing it in breeder reactors could supply Earth's energy needs for 5 billion years.
Closing the fuel cycle with
Generation IV reactors
will make efficient use of U238 and increase by thousand years the availability of nuclear fuel.
When peak uranium hits, thorium will still be a legitimate power option.
Fuel prices for nuclear energy is going up as stock is declining.
When deciding to rely on fission power for increasing demand, our power consumption might increase thousand-fold.
Nuclear fuel is not infinite, which means it will run out at some point. This makes it unsustainable in the long run.