© Stephen Lyons
These eerie ice halos were captured by Stephen Lyons while skiing on 3rd December 2015 and comprise ultra-rare Parry infralaterals and Lowitz arcs.
© Atoptics.co.ukHere an illustration of the same insane halo display but with the names this time. So many.
The Lowitz arcs are unusual in ski-slope diamond dust. Also, the helic, 46° Parry arcs are rarities that were only seen in exceptional displays at the South Pole before snow blowers.
It looks like something on Earth is changing even at the ice crystal and halo scale.
By no means should anyone consider the possibility that particulate matter from said persitsiantis contrailiatus has anything to do with such previously novel yet more and more common phenomenon such as "sun halos."