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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More than 40 schools across Gloucestershire have committed to walk, run or jog a "Daily Mile" between now and the summer holidays
Bright and possibly frosty start with cloud building later and showery outbreaks. It's milder but temperatures still low for late April.
It's a bright possibly frosty start to the day, showery outbreaks later. It'll be cloudy when it's not raining.