There are many more significant reserves of uranium. We just don't explore them because of a lack of demand. In addition, current reactors use very little of th

There are many more significant reserves of uranium. We just don't explore them because of a lack of demand. In addition, current reactors use very little of the fuel. Waste re-processing and breeders could extend supplies almost indefinitely. However, simply mining more uranium is more economically viable at the moment.