> Hence, ozone loss during rapid warming is an inherent Earth system process with the unavoidable conclusion that we should be alert for such an eventuality in the future warming world.
Did not know this worrisome hypothesis. The idea that a warming world could inject more reactive material into the stratosphere via convective storms seems reasonable. Thanks a lot for one more reason not to sleep tonight.
Fixing the ozone layer is far easier than moving a substantial of the earth's population off-planet. The total amount of gas is not extreme, which makes it so delicate but also means that we may be able to artificially manage it.
I'm not sure what you are saying here. What this paper is saying is that at some point the planet (before homo sapiens) had an "event" of some sort that basically removed the ozone layer and killed off most of what was living on the surface.
People don't have a mechanism to "inject ozone" into the stratosphere (we count on the Sun to do that) so if it were removed again, we would all likely die.
Similarly, at least one extinction event was due to volcanism, another thing we puny humans have no means to control (as much as I would love to be able to).
It is not disloyal to the global warming cause to acknowledge that there are things that we aren't responsible for that could kill us too.
Even if the Earth loses all its ozone we would still be more protected here than anywhere else in the Solar System. So any solution you come up with for, for example, living on Mars would work here as well and be cheaper. If you live in shelters covered in 2 meters of dirt on Mars, you could do that here too and not have to generate oxygen to breath.
People don't have a mechanism to "inject civilization" into Mars either. Pushing massive quantities of ozone into the stratosphere sounds solvable in a year or two, since we already know how to make it. Making a self-supporting Martian colony is a multi-generational project that we can't even begin yet. Let's do it, but these other threats are going to be extinction-level for a long time.
Did not know this worrisome hypothesis. The idea that a warming world could inject more reactive material into the stratosphere via convective storms seems reasonable. Thanks a lot for one more reason not to sleep tonight.