Reporter Films Ship Dropping Tires Into the Ocean, Then Learns the Reason Behind It

Black rubber

He told her to look at the water near the dock, just below the surface where the light was right. Lena leaned over the railing and looked down.

At first she saw only the usual dark water of a working harbor. Then she noticed it. A piece of black rubber, partially submerged, drifting slowly along the dock wall with the current.