32MM tires are buried every year. And that doesn’t include the thousands that are dumped illegally.
But buried tires do not decompose. Ever. If they are exposed to wind and rain, tires will eventually crumble, but they will ruin the soil they sit on.
Stored tires are also a perpetual fire risk. Tire fires are notoriously hard to put out and they typically leak toxic heavy metals into the surrounding soil and water table.
And when waste tires collect rain water, they act as a breeding ground for mosquitoes and other pests.
Last, but not least, burying is expensive. Municipalities spend over $750MM/yr burying tires!