If nuclear waste DID pollute water, it would still help combat climate change, specifically the warming of the earth. It doesn’t pollute water, and nuclear waste can be stored deep underground or reused. But we are out of time to find a “perfect solution” nuclear power is the ONLY option to provide renewable and carbon neutral base load power that other forms of “green electricity” will NEVER be able to compete with.
It’s coal or nukes. You better figure out which one you want fast.