[arcticbull]

I'm not sure that's relevant to the broader argument I am making. Don't blast waste into space. It carries with it dramatically higher costs - and drastically higher risks. It's completely untenable according to every study and paper on the matter.

Again, selecting a geographic area away from humans and providing sufficient demarcation is dramatically safer than putting it into a rocket and flying it up into orbit over humans. If you disagree, cite a source on its feasibility - and one on the lack of feasibility of deep geological sequestration. Let's not shoot from the hip on this one. I know I haven't found any.

[pfdietz]

It's untenable with current launch vehicles. Do you think current launch vehicles are the sine qua non of launcher technology, for centuries into the future? We don't have to shoot stuff into space right this moment.