The world’s biggest iceberg — a wall of ice the size of Rhode Island — is lumbering toward a remote island off Antarctica that’s home to millions of penguins and seals. The trillion-ton slab of ice — called a megaberg — could slam into South Georgia Island and get stuck or be guided around it

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 slab of ice — named A23a — weighs almost one trillion tonnes and could slam into South Georgia Island before either getting stuck or being guided around the land by currents.