Synopsis

In Hudson, Massachusetts, Roger demonstrates to homeowner Doug Ferguson the process of recycling yard waste through composting. Their visit includes a test site for compost bins, where they meet Ann McGovern, a composting expert from the Massachusetts Department of Environmental Protection. Afterward, Roger, along with Tom, Richard, and Kevin, pose the question, "What Is It?" in the *Ask This Old House* loft. Later, Richard assists Kate Smukler of Arlington, Massachusetts, in removing a corroded