Chemists at Plymouth University have identified the sticky substance that has killed hundreds of sea birds off the Devon and Dorset coast.
Their findings suggest it's a form of Poly Isol Butene, or PIB, used as a lubricating additive in oils to improve performance.
Tamsin Eames reports:
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Mainly dry, but rain tomorrow.
Mainly dry, but a little chilly.
A former Devon teacher has walked more than two hundred miles to raise money for a charity that supports his friend of more than 40 years.