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Edward Doddridge, Senior Research Associate in Physical Oceanography, University of Tasmania

Antarctic summer sea ice is at record lows. Here’s how it will harm the planet – and us

An icebreaker approaches Denman Glacier in March, when there was 70% less Antarctic sea ice than usual. Pete Harmsen AAD

On her first dedicated scientific voyage to Antarctica in March, the Australian icebreaker RSV Nuyina found the area sea-ice free. Scientists were able to reach places never sampled before.

Over the past four summers, Antarctic sea ice extent has hit new lows.

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