I think that they're multi-tasking 1) protection from increasingly dangerous UV rays 2) working in-tandem with har p ionospheric heating to mess with the jet stream…why 'polar vortexes' have been causing record lows last five years..
Think about it. All the hundreds, thousands of low level technical peps taking part in a major depop project? Their own friends and families below?? Can't believe that they are, or are unwitting dupes believing a lie that they're really protecting us. Just my take..