Originally Posted By: grampi
Isn't the rubber from old tires reused to make new ones?
As a rule, No!!
The raw materials used to make tires is cheaper than what it costs to process used tires into something usable.
But while it is less expensive to not recycle tires, the problem is so big that most locales try to improve the economics by mandating a fee on new tires to be used on recycling the old ones. That doesn't change the picture from a money loser to a money maker, but it does help.
Plus most tire manufacturers will use some recycled tire products in non-critical parts of the tire - like the sidewall. It makes for good PR, but in the big scheme of things is largely ineffective. We're talking a few percent for each tire.