"A garbage truck dumps its load at a U.S. landfill. More than 70 percent of the 180 million tons of refuse Americans throw away each year ends up in landfills, according to the Environmental Protection Agency. Compacted repeatedly by bulldozers, the inner recesses of landfills receive no light, air, or moisture, making biodegradation impossible. Scientists have even found hotdogs buried in 1974 still intact 15 years later."
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