Environment: Riding on Wastes

Every year, 100 million worn rubber tires and 26 billion nonreturnable glass bottles are discarded in the U.S. Disposing of them is a formidable problem, usually resolved by burning evil-smelling mountains of tires and burying tons of splintered glass. But there soon may be a neater and more practical solution: using the unsightly, troublesome waste products as construction materials in the 20,000 miles of highways that are built annually in the U.S.

In testimony before the Senate Committee on Public Works last week, Richard L. Cheney, executive director of the Glass Container Manufacturers Institute, called attention to an experimental product called "glasphalt."...

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