> Interestingly, humans didn't invent nuclear waste either.
> http://www.ocrwm.doe.gov/factsheets/doeymp0010.shtml
>

Interesting note:

"Once the natural reactors burned themselves out, the highly
radioactive waste they generated was held in place deep under Oklo by
the granite, sandstone, and clays surrounding the reactors' areas.
Plutonium has moved less than 10 feet from where it was formed almost
two billion years ago."
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