Headlines 

Glacial melting in Antarctica may become irreversible

Thwaites glacier is likely to thaw and trigger 50cm sea level rise, US study suggests A Nasa-funded study found instability in the Thwaites glacier meant there would probably come a point when it was impossible to stop it flowing into the sea and triggering a 50cm sea level rise. Other Antarctic glaciers were likely to be similarly unstable. Proceedings of the National Academy of Sciences journal found it was likely to succumb to instability linked to the retreat of its grounding line on the seabed that would lead to it…

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‘Precipitous’ fall in Antarctic sea ice since 2014 revealed

Plunge is far faster than in Arctic and may lead to more global heating, say scientists The vast expanse of sea ice around Antarctica has suffered a precipitous fall since 2014, satellite data shows, and fell at a faster rate than seen in the Arctic. The plunge in the average annual extent means Antarctica lost as much sea ice in four years as the Arctic lost in 34 years. The cause of the sharp Antarctic losses is as yet unknown and only time will tell whether the ice recovers or…

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Odds and Ends 

NASA Scientists Find Perfectly Rectangular Iceberg in Antarctica

Photograph by NASA NASA scientists recently spotted a perfectly rectangular iceberg floating among sea ice just off of the Larsen C Ice Shelf in Antarctica. They added that the iceberg’s sharp angles and flat surface indicate that it probably recently calved from the ice shelf. In an interview with Live Science, NASA scientist Kelly Brunt explains: We get two types of icebergs: We get the type that everyone can envision in their head that sank the Titanic, and they look like prisms or triangles at the surface and you know…

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Headlines 

Antarctic ice melting faster than ever, studies show

Rate of melt has accelerated threefold in last five years and could contribute 25cm to sea-level rises without urgent action Ice in the Antarctic is melting at a record-breaking rate and the subsequent sea rises could have catastrophic consequences for cities around the world, according to two new studies. A report led by scientists in the UK and US found the rate of melting from the Antarctic ice sheet has accelerated threefold in the last five years and is now vanishing faster than at any previously recorded time. A separate…

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Odds and Ends 

Dropping Ice Down a 90m Borehole in Antarctica Makes a Very Unexpected Sound

Glaciologist and climate scientist, Dr. Peter Neff of the University of Rochester, shared this quirky little clip on Twitter, documenting the unexpected sound made when a chunk of ice is dropped down a 90m (295 ft) long borehole in Antarctica. While this was just a fun experiment after Neff and his team had completed their research, the goal of their expedition was to study ancient ice (up to 800,000 years old) to track ways global warming is affecting the Earth. You can read more about their expedition and findings here…

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