| > Uranium is actually pretty rare > estimate is something like 50 years those are pretty pessimistic estimates. From a 2009 article on Scientific America According to the NEA, identified uranium resources total 5.5 million metric tons, and an additional 10.5 million metric tons remain undiscovered—a roughly 230-year supply at today's consumption rate in total the extraction of uranium from seawater would make available 4.5 billion metric tons of uranium—a 60,000-year supply at present rates fuel-recycling fast-breeder reactors, which generate more fuel than they consume, would use less than 1 percent of the uranium needed for current LWRs. Breeder reactors could match today's nuclear output for 30,000 years using only the NEA-estimated supplies. |
Since the fuel is cooled in water ponds for decades before it is processed, even in the case of a nuclear industry boom there's ample lead time to alter the plans if running out of materials seems to become an issue. I'd be much more worried about usage of oil as it is the base material for a lot of different things like medicines, and we're burning the stuff away (granted, we can do synthetic hydrocarbons, but the whole thing with oil is a bigger problem in my books than running out of uranium; it's still there to be retrieved if it really comes down to it).