Antarctica reached its annual maximum coverage this year on Sept. 10, about 13 days earlier than average.
Sea ice levels around Antarctica just registered a record low — and by a wide margin — as winter comes to a close, according to the National Snow and Ice Data Center . This significant milestone adds worry that Antarctic sea ice may be entering a state of decline brought on by climate change.
“It is surprisingly low,” said Twila Moon, an ice scientist at NSIDC. “We have this extreme low minimum and there hasn’t been any ability to recover towards previous higher extents during the Antarctic fall and Antarctic winterSea ice around the polar regions plays a critical part in protecting the adjacent ice sheets. Less sea ice means less sunlight will be reflected back to space, causing waters to warm more and destabilize surrounding ice and glaciers.
Declining trends in Antarctic sea ice have been more unclear, but scientists now think the continent is hitting a turning point much like the Arctic has. In just seven years, Antarctica has experienced three new record-breaking low sea ice summers. A
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