Category Archives: Sea ice

Australia not prepared for how Antarctic ice changes will hit economy, scientist warns

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Exclusive: Prof Matt King says accelerated melting could transform country and affect viability of some agricultural industries

A leading Antarctic scientist has urged the Albanese government to pay closer attention to abrupt changes under way in the southern continent, warning they will affect Australians in ways that are little understood and research into them is drastically underfunded.

The head of the Australian Centre for Excellence in Antarctic Science, Prof Matt King, said he found it embarrassing how little was known about the local and global ramifications of changes including a historic drop in floating sea ice cover, the accelerating melting of giant ice sheets and the slowing of a deep ocean current known as the Southern Ocean overturning circulation.

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Will El Niño on top of global heating create the perfect climate storm?

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Rising temperatures in north Atlantic and drop in Antarctic sea ice prompt fears of widespread damage from extreme weather

“Very unusual”, “worrying”, “terrifying”, and “bonkers”; the reactions of veteran scientists to the sharp increase in north Atlantic surface temperatures over the past three months raises the question of whether the world’s climate has entered a more erratic and dangerous phase with the onset of an El Niño event on top of human-made global heating.

Since April, the warming appears to have entered a new trajectory. Meanwhile the area of global sea ice has dropped by more than 1 million sq km below the previous low.

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Scientists plan mission to biggest iceberg as it drifts towards island

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Team will study effects on environment of A-68A, which is heading for South Georgia

Scientists are preparing for an urgent mission to the world’s biggest iceberg, which is on a collision course with the island of South Georgia in the southern Atlantic Ocean.

The A-68A iceberg, which is larger than Luxembourg, broke off from the Larsen C ice shelf in Antarctica in 2017 and has been drifting towards the island ever since.

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Pacific seals at risk as Arctic ice melt lets deadly disease spread from Atlantic

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Study finds seal and sea otter populations in Alaska hit by killer infection that migrated from North Atlantic

A potentially deadly disease affecting marine mammals, including seals and sea otters, has been passed from the North Atlantic Ocean to the northern Pacific thanks to the melting of the Arctic sea ice.

Experts have long been concerned that sea ice melting in the northern oceans, caused by global climate heating, could allow previously geographically limited diseases to be transmitted between the two oceans.

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The end of the Arctic as we know it

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Less oxygen and ice, more acid and heat. Jonathan Watts joins an expedition studying what this means for the planet

The demise of an entire ocean is almost too enormous to grasp, but as the expedition sails deeper into the Arctic, the colossal processes of breakdown are increasingly evident.

The first fragment of ice appears off the starboard bow a few miles before the 79th parallel in the Fram strait, which lies between Greenland and the Norwegian archipelago of Svalbard. The solitary floe is soon followed by another, then another, then clusters, then swarms, then entire fields of white crazy paving that stretch to the horizon.

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