Over time, as iron, steel, and other ferrous metals are exposed to oxygen and moisture they can undergo oxidation, a chemical reaction that eats away at the metal and rust your tools. Left long enough ...

Dr. Elizabeth Yuko is a bioethicist and adjunct professor of ethics at Fordham University. She has written for The New York Times, The Washington Post, The Atlantic, Rolling Stone, CNN & Playboy.

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You might think you are protecting your tools when you tuck them under a deck or lean them against the side of a shed, but that outdoor habit quietly invites rust to spread across every metal surface.

Alexandra Jones is a CNET contributor who writes about food, farming, gardening, and climate change. Her work has been published in USA Today, Forbes Food & Wine, Ambrook Research, and the ...