Baltimore's Inner Harbor used to be filled with all kinds of junk. But in the spring of 2014, the city did something about it. Amazingly simple in its design, a cleaning device known as the Inner Harbor Water Wheel now filters out tons of gunk every year. Nicknamed "Mr. Trash Wheel" by Baltimore residents, the barge-like installation picks up everything that floats into the harbor from the Jones Falls.
Spearheaded by the Waterfront Partnership of Baltimore, the wheel removed more than 350 tons of garbage in its first 18 months of operation. A continuously turning wheel, powered by a self-contained system of solar panels, picks up unsightly flotsam and places it into a large bin, which can be towed away for easy disposal.
Cleaning up Baltimore's Inner Harbor:
If only the rest of the world would follow.