‘Unprecedented’ marine heatwave hits waters around Devon, Cornwall and Ireland

Scientists warn of profound impacts as sea temperatures rise by up to 4C above average for springtime

The sea off the coast of the UK and Ireland is experiencing an unprecedented marine heatwave with temperatures increasing by as much as 4C above average for the spring in some areas.

Marine biologists say the intensity and unprecedented nature of the rise in water temperatures off the coasts of Devon, Cornwall and the west coast of Ireland are very concerning. As human-induced climate breakdown continues to raise global temperatures, the frequency of marine heatwaves is increasing.