Mystery heatwave warms Pacific Ocean to new record
2 hours ago Share Save Mark Poynting and Matt McGrath BBC News Climate and Science Share Save
Kevin Carter/Getty Images People head to the coast in San Diego on a hot summer's day
The waters of the north Pacific have had their warmest summer on record, according to BBC analysis of a mysterious marine heatwave that has confounded climate scientists. Sea surface temperatures between July and September were more than 0.25C above the previous high of 2022 - a big increase across an area roughly ten times the size of the Mediterranean. While climate change is known to make marine heatwaves more likely, scientists are struggling to explain why the north Pacific has been so hot for so long. But all this extra heat in the so-called "warm blob" may have the opposite effect in the UK, possibly making a colder start to winter more likely, some researchers believe.
"There's definitely something unusual going on in the north Pacifi
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