Antarctic Ozone Hole seasonal update: after some record-breaking ozone depletion amounts in August the depletion amounts and depletion rates early September have returned to values typical for this time of the year and this decade. That means that at first glance there does not seem to be anything unusual going on. As September is the favored month for ozone layer recovery detection over Antarctica for now all things are in line with expectations. But September still has just started
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In this day and age of ever and rapidly expanding data, information and knowledge, start to expect for any fact to find people challenging it. This includes politicians, business leaders, journalists, even scientists, not just deniers, skeptics, and weirdos. It is the "unstopable momentum of outdated knowledge". Our brains are simply not capable of keeping up with this rapidly developing information tsunami. This will have large societal consequences. There, I have said it.
A not unknown fluid dynamical phenomenon but to our knowledge never observed before in Earth's atmosphere. Its presence raises many more questions for future research. See further our paper, with most kudos going to the colleagues of LATMOS/IPSL in Paris. https://rdcu.be/c2kig
... we found many indications pointing to a type of dynamical confinement and self lofting. Key here was @esa's #AEOLUS satellite which revealed that this was a rotating disc. The rotation - potential vorticity anomaly - in the stable stratosphere prevents mixing ...
Our hunch - for a variety of reasons - was the latter. Model simulations (trajectories or chemistry-transport) were mostly incapable of keeping things together, indicative of the destructive hostile environment. When looking into other satellite data and weather reanalyses ...
Several publications explored this episode trying to answer the question how it could maintain its integrity, but without definitive answers. Was it a "dead fish", passively floating around with the background flow, or was there some dynamical confinement at play?
The June 2018 explosive eruption of the #Raikoke volcano injected large amounts of volcanic material directly into the stratosphere. Embedded were two circular structures that remained intact for months. At some point one transferred from the northern Pacific to the subtropics.
One of the weirdest atmospheric things I have encountered in 25+ year of atmospheric research: a 1-2 km thick SO2-filled stratospheric structure a few 100s km in diameter surviving for months in an otherwise disruptive environment. We wrote about it https://rdcu.be/c2kig🧵
@SFuntowicz“THE EXTENSIVE use of predictive analytics robs us of the opportunity to have an open future in which we can make a difference”
https://www.wired.com/story/algorithmic-prophecies-undermine-free-will/
When Marxism had to deal with the same problem:
Plekhanov (1898) On the Role of the Individual in History
https://www.marxists.org/archive/plekhanov/1898/xx/individual.html
Andrew DesslerWe are living in the novel, Termination Shock
A startup says it’s begun releasing particles into the atmosphere, in an effort to tweak the climate https://www.technologyreview.com/2022/12/24/1066041/a-startup-says-its-begun-releasing-particles-into-the-atmosphere-in-an-effort-to-tweak-the-climate/ by @[email protected]