A WWII shipwreck is still polluting the ocean after 80 years
From the Watch Now: Humpback whale rescued off Canadian coast, and more of today's top videos series
A World War II shipwreck is still leaking toxic elements into the ocean floor of the North Sea more than 80 years after it was sunk.
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The Savannah was the first vessel to cross the Atlantic Ocean partly under steam power.
