From today morning till this time (now 13h15), I see fine dusts everywhere surrounding me. 

They fill up the atmosphere over every horizon of the earth here. I thought fine dusts were mainly caused by fossil-fuel power plants, factories, vehicles, and factory farming until recently; but now the most severe cause seems to be chemtrails by non-civil airplanes. 

Mountains of observations are being reported almost everyday and from almost every region in Korea, too, like ones in this Facebook group: https://www.facebook.com/groups/167145033879163/