Water Wheel Picks Up Trash in Baltimore's Waterways

Trash in waterways around the world is a major environmental issue. The U.S. city of Baltimore, Maryland, is tackling its problem with a one-of-a-kind contraption with a waterwheel that pulls in garbage. Since it began operating last May, the water wheel has proved more effective than other means of picking up trash in the water. VOA’s Deborah Block has more.