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A student-run lab at Loyola University Chicago has been collecting used cooking oil and converting it into biodiesel fuel for more than 15 years.
For many, Thanksgiving is synonymous with cooking food, but the holiday can put many home chefs in a pickle: What to do with large amounts of spent cooking oil.
In Illinois, US, hundreds flock to locations across the state where they break pumpkins apart or smash them before they are taken to composting centres.
As people rush to get rid of their jack-o’-lanterns in favor of Thanksgiving decorations, thousands of ornamental pumpkins will likely end up in landfills.
Some Illinoisans have taken matters quite literally into their own hands