Stable Antarctic glaciers are now melting

Typography

A dramatic shift has taken place in the glaciers of the southern Antarctic peninsula, writes Bert Wouters. Six years ago these previously stable bodies suddenly stated shedding 60 cubic kilometres of ice per year into the ocean. A stark warning of further surprises to come?

The fact that so many glaciers in such a large region suddenly started to lose ice came as a surprise. It shows a very fast response of the ice sheet: in just a few years everything changed.

A dramatic shift has taken place in the glaciers of the southern Antarctic peninsula, writes Bert Wouters. Six years ago these previously stable bodies suddenly stated shedding 60 cubic kilometres of ice per year into the ocean. A stark warning of further surprises to come?

The fact that so many glaciers in such a large region suddenly started to lose ice came as a surprise. It shows a very fast response of the ice sheet: in just a few years everything changed.

Antarctica's glaciers have been making headlines during the past year, and not in a good way.

Whether it's a massive ice shelf facing imminent risk of collapse, glaciers in the West Antarctic past the point of no return, or new threats to East Antarctic ice, it's all been rather gloomy.

And now I'm afraid there's more bad news: a new study published in the journal Science, led by a team of my colleagues and I from the University of Bristol, has observed a sudden increase of ice loss in a previously stable part of Antarctica.

The region in question is the southernmost half of the Antarctic Peninsula, a section of the mainland which extends 1,300km into the Southern Ocean.

Antarctic glacier image via Shutterstock.

Read more at ENN Affiliate The Ecologist.