Not a good record to break.
This year's Antarctic wintertime sea ice levels fall nearly "one million square miles below the 1981–2010 average" and approach "half a million square miles below the previous lowest extent for the day, observed in 2022," according to the NOAA report.
To put those figures into context, NSIDC science writer Michon Scott, who authored the NOAA report, offered a helpful comparison. "Antarctic sea ice extent for June 27, 2023, fell below the previous record low for this date by nearly twice the size of Texas," Scott wrote. "It fell below the 1981–2010 average for this date by nearly four times the size of Texas."These findings are especially troubling since Antarctica has generally proven more resilient in comparison to the Artic, which has conversely shown a "decades-long decline" in surrounding sea ice, according to the report.
"Antarctic sea ice's current extraordinary behavior raises the question of whether this could be the start of a longer-term trend related to climate or ocean changes," Scott wrote, "but answering that question will require more time, data, and research."
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