there aren't many wonderful ways to reuse old tires, few artists are making statues from them, and burning them makes a lot of pollution. It seems making a landfill is about all that can be done when you have millions of them

But efforts may be underway to get the tires recycled https://www.arjes.de/en/news/shredding-under-the-dessert-sun/

as it would be a gross pollution event for the to burn away, as the results of a Google search show that several fires have burned in the tire landfills in the past decade in Colorado, Spain, and Kuwait

https://500px.com/photo/6816260/kuwait-tire-fire-by-mohammed-alsultan