Polluted coastlines: How a diver reinvented his career

Shawn Bath, who found his passion cleaning up shorelines, is the focus of a new documentary.

Shawn Bath had been a professional diver in the bays and inlets around Newfoundland for more than 21 years when he made a drastic career change.

His original job? Harvesting sea urchins off the ocean floor, a career not without its risks.