12 June: The Black Tears of the Sea

Scattered around the coasts of the world are ticking time bombs, so far virtually unknown to the public; 6,300 wrecks, sunk in the Second World War have been rusting away in the sea for over 70 years.

In 1989, the tanker Exxon Valdez ran aground off Alaska, polluting the coast with 37,000 tonnes of leaked crude oil. That's just a fraction of what's assumed to lie in the wartime wrecks.

The film takes us to the Baltic coast of Poland, to Norway, to the USA and the Pacific Ocean. We accompany scientists examining how badly the seabed is already contaminated in some places by seeping oil.

Tuesday at 00.25 on TG4.

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