European Union monitors have reported that the first half of 2026 saw record-breaking ocean warmth, with global sea surface temperatures reaching 21.0 degrees Celsius in June. Marine heatwaves affected 82 percent of the global ocean, with regions like the Mediterranean and the equatorial Pacific experiencing high temperatures. The onset of El Nino weather patterns could further increase ocean and atmospheric heat, potentially leading to more temperature records being broken in the coming months.
Why It Matters
The unprecedented ocean warmth observed in the first half of 2026, along with the potential impact of El Nino, highlights the increasing influence of climate change on our planet. With oceans playing a crucial role in regulating Earth’s climate, the rising temperatures could lead to more extreme weather events, sea-level rise, and threats to marine ecosystems. Understanding these trends is essential for addressing the urgent need for global climate action to mitigate the effects of warming oceans.
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