It is not only air temperatures that are rising. The oceans — home to up to 80 per cent of all life on Earth — are warming dangerously too.
The average global sea temperature has broken the all-time record, set in 2016, of 20.96 degrees Celsius, according to the EU’s Copernicus climate change service. This matters, because hotter oceans drive marine life to search for cooler waters, unbalancing delicate food chains. But this is not only a threat to fish.
