The oceans of the world are very warm. There was a record on June 21. The water at the top was 21 degrees warm. It was never this warm at this time.
Experts from Copernicus measured this. They use satellites in space. The climate change makes the water warmer. The weather event El Nino also helps.
El Nino happens every few years. It causes dry weather and much rain. This happens mostly in the Pacific. People in Europe feel little of it.
Warm water is dangerous. The air stays warm for a long time. There is more energy in the air. This leads to heavy storms. Also big floods can happen.
The experts expect more records. The earth enters a new phase. The oceans store much heat from people. This protects us a little from heat.
