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New Research Could Mean Biodegradable Rubber Tires

Left-over rubber tires have been the bane of landfills - and environmentalists - for decades. The most recent statistics suggest that about a billion tires wear out every year all around the world. The big problem with all of these old tires is that they're tough, and if they end up in a landfill, it's unclear how long it will take for them to decompose, especially if they're covered up by other garbage. If they're not covered up, they can also collect rainwater and become...

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