What is this and what does it do?

[DFX 340 Duster]

I’m visiting my daughter, son-in-law, and grandchildren in Indiana this week. This material is floating down from the sky. Is this the Fall Colors that I have heard so much about?

 

[jos51700]

That's the global warming that Greta Thunberg warned us about.

 

[Ddaddy]

I’m visiting my daughter, son-in-law, and grandchildren in Indiana this week. This material is floating down from the sky. Is this the Fall Colors that I have heard so much about?View attachment 1715416653

Here it’s called a “Dusting” and it inconveniences you...Back in Memphis it is called “White Death” that threatens to kill you when you try to drive on it with worn out Summer tires that become hard as hockey pucks when it falls.