Yes there is, bury it. Its what we do with lots of other waste. Of course, you have to be a bit more careful than you would be with a standard landfill. But the engineering is well understood. It is usually just the fact that nobody wants it buried near them that causes political issues.
>The waste will burden hundreds of generations for millenia
Pumping more carbon into the atmosphere is also a huge burden for future generations.
>Climate change is a minor problem in comparison
What do you base that on?