Antarctica is facing an alarming climatic anomaly, as temperatures have surged up to 50°F above average amid a persistent heat wave that began in mid-July. This near-record-breaking event is the second heat wave in the past two years, occurring despite the continent being in the heart of its winter—a time typically characterized by extreme cold and darkness. Eastern Antarctica, in particular, has been hit hard, with temperatures soaring to -22°F and even -13°F, far above the usual -58°F to -76°F range expected during this season. Such unprecedented warmth in the region underscores the fragility of Antarctica’s climate and raises significant concerns about the broader implications for global climate patterns.
The cause of this unusual warming is linked to a rare disruption of the southern polar vortex, a stable system of strong winds and low-pressure areas that usually trap cold air over Antarctica. Researchers believe atmospheric waves likely disturbed this vortex, allowing warmer air to flow into the region and causing temperatures to rise sharply. The phenomenon is so rare that it occurs only once every 20 years, making this heat wave particularly extraordinary. The ongoing warming is further exacerbated by repeated surges of warm air from the southwestern Indian Ocean, which have extended the duration and severity of the heat wave. Scientists fear such events could become more frequent, potentially accelerating ice melt, altering ocean currents, and contributing to a looming climate crisis.
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source: CNN
