Farm to asphalt: Bridgestone creates tires with desert shrubs

Firestone Firehawk IndyCar race tires made with guayule rubberAfter a decade of research, Bridgestone is starting to create tires with a new, more sustainable source: a desert shrub called guayule. Native to northern Mexico and southwestern U.S., guayule is a heat-tolerant source of natural rubber that can be used to make tires, according to Bridgestone. Natural rubber can be extracted from guayule's...

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