Nuclear power

[polymath257]

Decades versus (at least) centuries.

So what?  Assume 1,000 years; a drop in the bucket to the lifetime of human civilization, if it lasts.  Is all the radioactive byproducts that will last for hundreds of thousands of years worth it??  In my opinion, no way.

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The actual amount of highly radioactive material is quite low. And the lower level stuff is less dangerous overall than a lot of the stuff emitted by conventional plants.
People tend to freak out about radioactivity, but you get more from a stone wall than you would get from most man-made sources. And definitely more if you ever fly in an airplane.