Showing posts with label Iceberg A68. Show all posts
Showing posts with label Iceberg A68. Show all posts

Oct 13, 2018

Iceberg A68 Scare

There was major news about the world effects last year when a huge iceberg broke off the Larsen C shelf in Antarctica. On 12 July 2017, a lump of ice more than twice the size of Luxembourg or the state of Delaware broke off the Larsen C ice shelf, spawning one of the largest icebergs on record and changing the outline of the Antarctic Peninsula forever.

Even though it has been proven that the break had no relation to climate change, a headline read, "If climate change continues unabated, ice-free areas on Antarctica will increase up to a quarter by 2100 - says a study on changes in the planet's southernmost continent." Another headline read, "Antarctica: Larsen C break off could have dire consequences." Many were worried about how far and where it would float and what damage it would cause before dissolving.

During the following months, observations showed the iceberg remained close, buffeting back and forth against the ice shelf. It was unclear what would happen to the berg, because they can remain in one place for years. A68 (sixth largest in recorded history) is now on the move and drifting out to sea with a gap of about 11 miles (18 km) between it and the shelf.

For B15, the second-biggest iceberg in recorded history, the process has taken nearly two decades. B15 snapped off Antarctica's Ross ice shelf in 2000. It had a surface area of 4,200 square miles - twice that of A68. Today it is drifting in warm waters near South Georgia (southeast of South America).

Incidentally, I had to scour about thirty web sites to find current details. Other than a few real scientists, not much interest lately. Bottom line, it broke off, we are all still safe, Meh.