60lbs aluminum, of which some portion will be in the right place, and in the right form to react with O³, ozone.Ozone itself is a kind of bad news molecule, as it reacts with almost anything, and is always in flux, bieng created by some processes and destroyed by others, all in all our ozone layer is on the mend. What would be relevant to this, is to know the full mix of stratospheric reactions that are effecting ozone, like say, natural meteors, and reactions with dust, created by other human activities......it's going to be a complex set of factors, that may likely be impossible to nail down satesfactorily....so.....one more thing to keep an eye on, eh!

Maybe, I love how the author moves straight from the death of the ozone layer to “it will be a pretty show”