Cups that formerly held the morning's caffeine jolt are being turned into biofuel by two microbiologists at the University of Manitoba. Paper cups from Tim Hortons are collected in bins across campus and used to feed the bacteria that create ethanol and hydrogen. "They like the Tim Hortons cups better than the Starbucks cups," researcher David Levin said. "It's not that they don't like the Starbucks; it just takes them a little bit longer to break them down and convert them."
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