Am I skimming this too quickly, or does it actually say sub-seabed/subduction sequestration is one of the few options that actually works - it's just not currently possible because of international "dumping at sea" treaties?
With such a small volume I think 'do nothing' is fine at the moment until we can find an economical use for it (fast breeder, traveling-wave etc, etc), or agree the best way to dispose of it - 20,000-year managed repositories don't seem viable to me.
