Why Ghana's Clam Farmers Are Digging GPS
Samuel-Richard Bogobley is wearing a bright orange life vest and leaning precariously over the edge of a fishing canoe on the Volta River estuary, a gorgeous wildlife refuge where Ghana's biggest river meets the Gulf of Guinea.
He's looking for a bamboo rod poking a couple feet above the surface. When he finds it, he holds out a computer tablet and taps the screen. Then he motions for the captain to move the boat forward as he scans the water for the next rod.