Articles on Antarctica

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A polar bear wandering on melting pack ice in Canada, north of the Arctic Circle, during the summer 2017. Scientists say the last interglacial offers lessons for future sea level rise. Florian Ledoux/The Nature Conservancy

Scientists looked at sea levels 125,000 years in the past. The results are terrifying

Antarctica is no longer the sleeping giant of sea level rise. New research delved into the past and found when the Earth warms, its ice sheets can melt extremely quickly.
Indonesian residents wade through flood water near the Ciliwung river in Jakarta in February 2018. Our emissions in the near future will lock in sea level rise over centuries.

Our shameful legacy: just 15 years’ worth of emissions will raise sea level in 2300

New research confirms that what the world pumps into the atmosphere today has grave long-term consequences. Governments - especially Australia's - must urgently ramp up efforts to reduce emissions.
During the Pliocene, up to one third of Antarctica’s ice sheet melted, causing sea-level rise of 20 metres. from www.shutterstock.com

If warming exceeds 2°C, Antarctica’s melting ice sheets could raise seas 20 metres in coming centuries

New research shows that warming by more than 2°C could be a tipping point for Antarctica's ice sheets, resulting in widespread meltdown and changes to the world's shorelines for centuries to come.
Aerial imagery revealing the extent of storm damage in Dee Why on Sydney’s Northern Beaches in 2016 following wild weather. NEARMAP/AAP

A landmark report confirms Australia is girt by hotter, higher seas. But there’s still time to act

The IPCC report says extreme sea level events that used to hit once a century will occur once a year in many places by 2050. This situation is inevitable, even if emissions are dramatically curbed.
Antarctic winds have a huge effect on weather in other places. NASA Goddard Space Flight Center/Flickr

The air above Antarctica is suddenly getting warmer – here’s what it means for Australia

Each spring, winds circling the South Pole weaken. If they weaken enough, they can actually reverse – causing rapid warming.
Since the last ice age, the ice sheet retreated over a thousand kilometres in the Ross Sea region, more than any other region on the continent. Rich Jones

New research shows that Antarctica’s largest floating ice shelf is highly sensitive to warming of the ocean

New research shows that ocean and air temperatures both contributed to the melting of Antarctica's Ross Ice Shelf in the past, but melting from below by a warming ocean became more important over time.
One of two underwater gliders is deployed from a research ship into Antarctic waters. NOAA

Waiting for an undersea robot in Antarctica to call home

Sending autonomous vehicles to the Southern Ocean can be fraught with anxiety, especially if one of them doesn't make radio contact when it's supposed to.
Sea ice responds to changes in winds and ocean currents, sometimes with origins thousands of kilometres away. NASA/Nathan Kurtz

Why Antarctica’s sea ice cover is so low (and no, it’s not just about climate change)

Antarctic sea ice cover fell to an all-time low recently and hasn't yet recovered. Why? The initial answers could lie in an unlikely place – the tropics.

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