It began heading towards the island in 2020.
An iceberg that was once the largest on the planet, dubbed A68a, recently released 152 billion tons of fresh water close to the sub-Antarctic island of South Georgia, potentially impacting the region’s ecosystem,in 2017 when it broke off the Larsen-C ice shelf, located near the tip of the Antarctic Peninsula.
The largest iceberg in the world at the time of its formation, it initially floated around the Weddell Sea close to Antarctica before making its way its way across the Drake Passage between southern South America and the northern reaches of Antarctica. As it approached the southern Atlantic island of South Georgia in December 2020, researchers became concerned that it would disrupt wildlife in the remote region.
The next step is to determine exactly what that impact looked like, Anne Braakmann-Folgmann, the lead author of the study, says. Braakmann-Folgmann also noted that A68a’s route across the Drake Passage could help researchers learn more about future icebergs and “how they influence the polar oceans.” That will be valuable information to have, considering climate change is expected to accelerate ice shelf collapse, leading to more big icebergs breaking off Antarctica in the future.Subscribe to get the best Verge-approved tech deals of the week.Please confirm your subscription to Verge Deals via the verification email we just sent you.
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