Hydro alters environments, stick with nuclear.
Nuclear waste sucks!
BUT: We already have about 60 years worth of it, and we need to find a long term storage solution regardless.
And assuming we would double the amount of nuclear waste, then it would only take one additional half-time to decay.
Go nuclear!
Spent fuel rod reactors are well into development, and they will be able to use that waste to generate power and leave behind non-radioactive materials.