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I could barely contain my surprise when my brother asked me a few months ago which compost bin he should buy from Gaiam. We’re talking about a guy who arguably has the cleanest fingernails on the planet (he’s a heart surgeon) and who has absolutely no tree-hugging tendencies. His SUV gets 13 miles to the gallon. He doesn’t have a single compact fluorescent light bulb in his entire house. He occasionally bikes to work, but mostly to avoid becoming like one of his patients. But his 13-year-old son came home from Boy Scouts one day and said, “Dad, we have to start composting.”