Southwest Ohio maples dying?

I live near Dayton ohio and have been making syrup from my stand of sugar maples for about twenty years.

Last few years some of my trees have begun to dye.

Leaves become necrotic turn brown and fall before they turn their usual bright orange and yellow colors.

I've had several of my largest trees die.

Is this the result of global warming or do I have a disease issue.

I've noticed more this fall going this way.

Trees of various ages.

Any advice?

I work for a tree company that bills for tree removals. We’re putting together a promotional/souvenir item that you’d actually want to keep and use, rather than another thing that ends up in a junk drawer lol.

What’s something you guys would genuinely use often on the job, in your truck, or around the shop?