June Ocean Heat Surges to Record, Raising Alarm of a New Climate Regime
Global oceans reached a new June heat record, with average sea-surface temperatures around 69.5°F (20.86°C) on June 21, 2026 (Copernicus data), and 69.38°F in another dataset, driven by the onset of El Niño and ongoing human-caused warming. Scientists warn this could mark a shift into uncharted territory, likely bringing more heat waves, stronger storms, heavier rainfall, and threats to marine life such as coral bleaching, though whether the spike is temporary remains uncertain.
