The world's largest iceberg, A23a, is currently on a collision course with South Georgia, a remote British territory known for its rich wildlife, including penguins and seals.

After being trapped for over 30 years, A23a broke free from the Filchner Ice Shelf in December 2024 and has since been moving toward South Georgia.

Previously, A23a was stuck around an undersea mountain but is now following a prevailing ocean current, making its trajectory toward the island more predictable.

While the calving of A23a is considered part of the natural growth cycle of the ice shelf, researchers link the increasing frequency of iceberg loss from Antarctica to human-induced climate change.

Current satellite imagery shows that A23a has maintained its structure and is expected to reach the continental shelf of South Georgia in two to four weeks.

As A23a approaches, scientists note two potential outcomes: it could either drift into open water or run aground on the continental shelf, potentially blocking access to feeding areas for local wildlife.

If A23a settles near the island, it could obstruct food sources for seals and penguins, leading to increased mortality rates among these species.

This season has already been challenging for seal and penguin populations due to a bird flu outbreak, and the presence of A23a could worsen their plight.

Environmental changes, including glacial retreat and unpredictable iceberg behavior, are becoming increasingly problematic for local operations due to climate change.

A23a's journey has garnered media attention, especially after it escaped a water vortex in late 2020, and its current movement is being closely monitored by scientists.

Mark Belchier, director of fisheries and environment for South Georgia, is actively monitoring the iceberg's trajectory due to its potential impacts on shipping and fishing activities in the region.

The unpredictable nature of icebergs like A23a raises concerns for sailors and fishermen, as the iceberg could break into smaller chunks, posing additional risks.