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Arctic Endures Hottest Summer Ever Recorded

(MENAFN) The Arctic has endured its hottest summer ever recorded, with temperatures soaring far beyond normal levels and sea ice plunging to critically low extents, according to fresh analysis featured on the Arctic News blog. This extreme heat surge is intensifying disruptions to the climate system, the study cautions.

Data released by the National Snow and Ice Data Center (NSIDC) show that in July 2025, temperatures across the Arctic soared 3°C above the typical seasonal average, driving sea ice coverage to the second-lowest levels on record. This rapid ice retreat has alarmed climate scientists worldwide.

Highlighting the accelerating changes, the World Meteorological Organization (WMO) reports the Arctic is warming at over twice the rate of the global average, triggering profound shifts in local climate patterns. Rising sea surface temperatures in the North Atlantic further compound these changes.

On August 5, 2025, North Atlantic sea surface temperatures hit 32.8°C, with the Gulf Stream channeling this heat northward, intensifying Arctic ice melt. Experts emphasize the threat: “This accumulated heat poses a major threat to sea ice and permafrost.”

The Bering Strait recorded temperatures reaching 20.3°C during the same timeframe. Heightened heat from severe weather events—including heatwaves and thunderstorms—is raising river temperatures and accelerating ice loss. Additionally, rain falling directly on sea ice is contributing to its accelerated decline.

This ice depletion is driven by feedback mechanisms such as the albedo effect—where shrinking ice exposes darker ocean surfaces that absorb more heat, further elevating temperatures. This cycle destabilizes permafrost and fuels more extreme weather, a process scientists warn will intensify in coming years.

Although freshwater influx from melting ice and rivers has momentarily slowed ice loss, experts caution this reprieve is temporary. As ocean temperatures continue to climb, the freshwater’s ability to preserve ice is expected to wane, failing to prevent further rapid melting.

The stark data underscore a mounting climate crisis with urgent global implications.

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