The world’s oceans reached their hottest recorded temperatures this past July. Developing El Niño conditions in the Pacific partly fuelled this massive surge. The Copernicus Climate Change Service reports that the average sea surface temperature hit 20.96°C outside the polar regions. This easily beat the previous record of 20.89°C set in 2023.
July also became the joint second-warmest month globally on record. Temperatures soared 1.47°C above the estimated pre-industrial average. Let us explore the driving factors behind these soaring temperatures and their devastating impact on land and sea.
The El Niño Effect and Ocean Health
Sea temperatures remained exceptionally high across the tropical Pacific. Here, the natural El Niño weather pattern continues to develop and strengthen. This natural phenomenon combines with human-driven global warming to cause extreme temperature spikes.
Oceans act as a vital climate regulator. They absorb excess heat from greenhouse gas emissions and produce half of Earth’s oxygen. Unfortunately, hotter seas drive longer and fiercer marine heatwaves. These extreme events bleach coral reefs, decimate kelp forests, and damage global fisheries.
Warming water also undergoes thermal expansion. This expansion accounts for roughly a third of modern sea level rise. This rising water severely threatens low-lying coasts and island nations. Furthermore, warmer surfaces evaporate more heat and moisture into the air, which intensifies tropical storms.
Europe Bakes Under the “New Normal”
Meanwhile, Western Europe experienced its hottest ever June and July. The average two-month temperature hit 21.62°C, which sits a staggering 2.79°C above normal. Persistent high-pressure systems trapped heat over the entire region.
Samantha Burgess serves as the strategic lead for climate at the European Center for Medium-Range Weather Forecasts. She stated that bone-dry soils severely reduced the earth’s natural cooling ability.
“This is a clear example of how climate change is intensifying heat extremes, with heat and drought increasingly reinforcing one another,” Burgess explained.
Severe Droughts and Devastating Wildfires
Severe droughts have recently struck France, Spain, Germany, and the UK. Major rivers recorded exceptionally low water levels. The Seine, Rhine, and Danube River suffered massive flow reductions. These drops threaten water supplies, agriculture, and energy production. In Romania, authorities even shut down a vital nuclear plant because of the drastically low Danube.
These prolonged dry conditions also spark massive wildfires. Laurence Rouil directs the Copernicus Atmosphere Monitoring Service. He warned that climate change brings the exact hot, dry conditions that favor high-intensity blazes in southern Europe. These massive fires inject smoke higher into the atmosphere. This allows toxic emissions to travel much further and choke neighboring countries.
The End of the 20th-Century Climate
The UK currently braces for its fifth heatwave of the year. The UK Met Office reports that England and Wales just recorded their driest July in 190 years of record-keeping. The Environment Agency has officially declared large parts of England and all of Wales in drought.
Mike Kendon, a climate information scientist at the Met Office, delivered a sobering final warning regarding this “new normal” weather.
“We are right now living in a time of historic and unprecedented change. Evidence shows the climate of the 20th century has now gone.”
Also Read : Hantavirus ship evacuees to be taken to the Netherlands but timeline unclear, cruise line says
