Antarctica’s Larsen C ice shelf deep crack continues to cut across the ice, leaving a huge chunk clinging on. When it eventually gives way, one of the largest icebergs on record will be set adrift, and whole or in pieces, ocean currents could drag it north, even as far as the Falkland Islands. And if so it could pose a hazard for ships in Drake Passage.
The 2015/16 cruise season has taken off in Argentine Tierra del Fuego with the arrival on Monday, of 'Ushuaia' and 90 passengers, one of the 331 calls which are estimated according to Ushuaia authorities. Gianfranco Guardamagna head of the Tierra del Fuego Tourism Institute recalled the significance of the cruise industry for Ushuaia, since the austral city commands 95% of all international Antarctic tourism.
Modelling of the effects of sea temperature rises in the Southern Oceans indicates that krill in the seas around South Georgia may be the hardest hit of the region by the effects of global warming, reports the August edition of the South Georgia Newsletter.
Antarctic krill are usually less than 6 cm in length, but their size belies the major role they play in sustaining much of the life in the Southern Ocean. They are the primary food source for many species of whales, seals, penguins and fish.