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Tom Philpott was Grist's senior food writer until May 2011. He now writes for Mother Jones.
Fourth-grade filmmaker sneaks a camera into the cafeteria to document his gross school lunch
Staggering time-lapse footage of the Oklahoma tornado
Antarctica’s “bleeding glacier” is kind of terrifying
This app helps you avoid supporting Monsanto and other terrible companies
House Republican accidentally tells truth about Solyndra investigation