Firstly, it's not really waste. Only a fraction of useful energy has been extracted & there is a lot of useful elements mixed in due to all the transmutations a

Firstly, it's not really waste. Only a fraction of useful energy has been extracted & there is a lot of useful elements mixed in due to all the transmutations and fision going on. There are techniques to reprocess used nuckear fuel into more fuel and other useful substances but there is often no political will & a lot of noise from people protesting agains anything nuclear that prevents used up fuel from being properly reused.