Huge Antarctic iceberg headed towards South Georgia breaks in two

Researchers fear iceberg may disrupt underwater ecosystems and block penguins looking for food

Strong currents have taken hold of a massive Antarctic iceberg that is on a collision course with South Georgia island, causing it to shift direction and lose a major chunk of mass, a scientist tracking its journey said on Friday.

As the iceberg, dubbed A68A, approached the western shelf edge of the south Atlantic island this week, it encountered strong currents, causing it to pivot nearly 180 degrees, according to Geraint Tarling, a biological oceanographer with the British Antarctic Survey.