Antarctica penguins unable to return home due to iceberg grounding

Sea ice around Antarctica is increasing, in contrast to the Arctic where global warming is causing ice to melt and glaciers to shrink. - Nasa/AFP/File

Sydney (AFP) - Tens of thousands of Antarctic penguins are estimated to be unable to return to their colony after a massive iceberg grounded there, according to a newly published study.

The B09B iceberg, measuring some 100 square kilometres (38.6 square miles), grounded in Commonwealth Bay in East Antarctica in December 2010, the researchers from Australia and New Zealand wrote in the Antarctic Science journal.