The world's biggest iceberg—more than twice the size of London—could drift towards a remote island where a scientist warns it risks disrupting feeding for baby penguins and seals.

The world's largest iceberg, A23a, is drifting towards the wildlife haven of South Georgia, where it may cause problems for the resident penguins

World's Largest Iceberg On Collision Course With South Georgia's Penguins. The world’s largest iceberg is on a collision course with penguins in the British Overseas Territory of South Georgia. Images of the A23a iceberg taken from an RAF Atlas A400M aircraft as it flew a routine operation over the South Atlantic show the iceberg looming towards the geologically important island.