Could Woodchips Help Clean Up Our Rivers? / Keeping Zoo Animals Warm During A Cold Snap
Environmentalists and a handful of farmers are installing "woodchip bio-reactors" on local farms. They say the underground system could help remove nitrate pollution from water before it flows into local rivers and the Chesapeake Bay. We'll find out how the reactors work. Then, we'll visit the Salisbury Zoo to hear how keepers there care for animals during a cold snap.