‘Unheard of’ marine heatwave off UK and Irish coasts

Mon Jun 19, 2023 5:06 pm

‘Unheard of’ marine heatwave off UK and Irish coasts poses serious threat
Sustained high temperatures over summer could trigger mass mortality of fish and oysters, say scientists

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An “unheard of” marine heatwave off the coasts of the UK and Ireland poses a serious threat to species, scientists have warned.

Sea temperatures, particularly off the north-east coast of England and the west of Ireland, are several degrees above normal, smashing records for late spring and early summer. The North Sea and north Atlantic are experiencing higher temperatures, data shows.

The Met Office said global sea surface temperatures in April and May reached an all-time high for those months, according to records dating to 1850, with June also on course to hit record heat levels.

The US National Oceanic and Atmospheric Administration has categorised parts of the North Sea as being in a category four marine heatwave, which is considered “extreme”, with areas off the coast of England up to 5C above what is usual.

More at The Guardian
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