Yet Another Modest Proposal: The Roentgen Standard (1980)
larryniven.net
larryniven.net
Recall an incident from the 1980s where widespread contamination was revealed only by happenstance - a wrong turn during a delivery of rebar at Los Alamos:
https://en.wikipedia.org/wiki/List_of_civilian_radiation_acc...
Drop the radioactive wastes, in canisters, in to the seabed folds where the continental plates are sliding under each other. The radioactives would disappear back into the magma from which they came.
Until I realized, this radioactive stuff would get vaporized and eventually escape in to atmosphere and ocean. Wouldn't that be much worse than getting spilled on land?
* The lithospheric magma is not hot enough to vaporize or even liquify solid capsules of nuclear waste. Even the magma itself isn't liquid, just ductile solid.
* We're talking about subduction zones where the underlying magma conveyor belt is going down. It isn't going to return any time soon, giving plenty of time for the actually dangerous high-activity stuff to decay.
Refine the nuclear waste to separate out the different radioactive elements and isotopes. Drop a distinct cocktail (of short-lived and long-lived isotopes, not reusing any isotopes between cocktails) into each crevice. Measure subsequent outflow from around the world, looking for traces of the cocktails.
This could provide a lot of interesting data on the speed at which materials are recycled, how liquid the upper layers of the crust are (are any of the materials returned, or do they just sink towards the center?), what directions the under-plate currents flow in, how much mixing is going on, et cetera et cetera et cetera.
Hell, we need to begin injecting nuclear waste into the sea bed.