Every time you finish frying, you're left with a pan of used cooking oil and a dilemma: what to do with it? Pouring it down the drain is an environmental disaster, but throwing it in the trash feels ...

Foaming hand soap is more efficient and easier to rinse off. Here's how I make it and save hundreds of dollars over store-bought every year. Chris Wedel Home Tech Editor Chris Wedel is a fan of all ...

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In the heart of Rio de Janeiro’s Rocinha favela, the largest in Brazil, a chance discovery led a resident creating a project to turn improperly discarded cooking oil into sustainable soaps and ...