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Antarctic tipping points: The irreversible changes to come if we fail to keep warming below 2℃

Date: 2023
Type: Science
Authors: Tim Naish
Summary: The slow-down of the Southern Ocean circulation, a dramatic drop in the extent of sea ice and unprecedented heatwaves are all raising concerns that Antarctica may be approaching tipping points.
Cold Call original banner

Cold Call: Edition Six

Date: 2023
Type: Cold Call Article
Authors: Antarctic Science Platform
Summary: This Cold Call contains four articles that explore how sea ice interacts with the climate, ocean and ecosystem functions across regional and global scales, and highlights where Antarctic Science Platform research is investigating these issues.
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New map unlocks deep digital data of Antarctica’s history

Date: 2023
Authors: GNS
Summary: Today marks a ground-breaking transformation in global Antarctic research, and a new way we understand the frozen continent. Documentation of the first open-access and comprehensive geological database of Antarctica, GeoMAP Antarctica was released today in Nature Scientific Data on the 19th May 2023 (PST).
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Why is Antarctic sea ice so hard to model?

Date: 2023
Type: Cold Call Article
Authors: Andrew Pauling, Inga Smith, Max Thomas
Summary: Climate models struggle to reproduce observed Antarctic sea-ice behaviour, due to the many processes affecting its formation and melt. Models must get these processes right in order to inform us what might happen next.
Weddell seal pups

Sea ice and ecosystems

Date: 2023
Type: Cold Call Article
Authors: Rowan Howard-Williams, Ian Hawes
Summary: Sea ice plays a crucial role in the life cycles of many Antarctic organisms, from the algae at the base of food chains, to seals and penguins at the top.
Antarctic sea ice

The connections between sea ice and climate

Date: 2023
Type: Cold Call Article
Authors: James Renwick
Summary: Antarctic sea ice has an annual seasonal cycle of formation and melting, plus it’s exposed to the winds and storms of the Southern Ocean and to a range of climate influences from near and far.
McMurdo Sound pack ice

Sea ice and ocean circulation

Date: 2023
Type: Cold Call Article
Authors: Rowan Howard-Williams, Denise Fernandez, Craig Stevens
Summary: Formation of Antarctic sea ice affects ocean circulation across the globe. Understanding the mechanisms linking these phenomena is crucially important to understand the impacts of future change in Antarctica.
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Record low Antarctic sea ice is another alarming sign the ocean’s role as climate regulator is changing

Date: 2023
Type: In the media
Authors: Craig Stevens
Summary: A changing climate is upon us, with more frequent land and marine heatwaves, forest fires, atmospheric rivers and floods. For some, it is the backdrop to day-to-day life, but for a growing number of people it is a life-changing reality.

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