Furthermore, we find that these reentry byproducts may take up to 30 years to settle from the top of the mesosphere into the stratospheric ozone layer. Upon reaching an altitude of about 40 km, aluminum oxides catalyze chlorine activation which promotes ozone depletion.
So the “reentry byproducts” from a satellite re-entering now, won’t start breaking down ozone until 2056, and by then there will be another 30 years’ worth of byproducts deposited in the upper atmosphere.
And since it’s a catalyst, it won’t even be consumed in the process like CFCs are.
And it’ll take ages to have an impact too.
So the “reentry byproducts” from a satellite re-entering now, won’t start breaking down ozone until 2056, and by then there will be another 30 years’ worth of byproducts deposited in the upper atmosphere.
And since it’s a catalyst, it won’t even be consumed in the process like CFCs are.