Recent, rapid ocean warming ahead of El Niño alarms scientists, concerned that it will add to global warming.
This month, the global sea surface hit a new record high temperature. It has never warmed this much, this quickly
Scientists don't fully understand why this has happened
But they worry that, combined with other weather events, the world's temperature could reach a concerning new level by the end of next year
https://www.bbc.com/news/science-environment-65339934
Recent, rapid ocean warming ahead of El Niño alarms scientists
There’s growing concern that the oceans are heating up quickly – and scientists are unsure of the implications.By Matt McGrath and Mark Poynting (BBC News)